The Saqqara King List (a.k.a. Saqqara Tablet) contains a list of Egyptian pharaohs. Mariette wrote of the discovery to his patron Vicomte de Rougé in March of 1860, but the list was not published until 1864.
It was inscribed on a wall in a funerary shrine above the tomb of a lector-priest by the name
Tjunery (ṯwnry), who lived during the reign of Ramesses II. The location of the tomb is lost, but supposedly south of Djoser's step pyramid, close to the pyramid of Unas, between the Monastery and Sekhemkhet’s enclosure.
The inscription originally listed 58 kings in two rows of 29 kings each, in reverse chronological order, starting with Ramesses II, going backwards to Adjib. The remains of the wall was dismantled into eight parts, the missing sections were not found. It was assigned inventory number JE 11335 (CG 34516), and is on display at the Grand Egyptian Museum in Cairo where it was given yet another designation: GEM 45485.
It was written in the tradition of Lower Egypt, i.e. preferring honored ancestors with a strong affinity in Lower Egypt. The purpose of the list was to show celebrated "ancestors," and was not meant to be a complete chronological list, apparent by the exclusion of Hatshepsut and the heretic Amarna pharaohs.
Cartouche 39 was recorded by Mariette in 1864 containing the name Menkaura, but this is the only attestation for this. In all subsequent line drawings, the cartouche is drawn as unreadable, so the reading cannot be trusted, it was likely added by Mariette.
Content of the list
Curiously, the New Kingdom kinglists have differing numbers of kings for the Fourth Dynasty. Abydos holds six kings (20-25), Saqqara nine (43-35) and the Royal Canon of Turin eight (4.9-16). At some point, the records of the Fourth Dynasty suffered damage that resulted in incompletely preserved archives for posterity. Centuries later, scribes accessing the archives for information about the ancient kings either failed to realize that the records were incomplete, or misinterpreted the contents. The variation in the three king lists is puzzling.

User Maat Ra, setep en Ra
wsr-mꜢꜤt-rꜤ stp.n-rꜤ
The justice of Ra is powerful, chosen of Ra

Men Maat Ra
mn-mꜢꜤt-rꜤ
Eternal is the Truth of Ra

Men pehty Ra
mn-pḥti-rꜤ
Eternal is the Strength of Ra

Djoser kheperu Ra, setep en Ra
ḏsr-ḫprw stp-n-rꜤ
Holy are of the manifestations of Ra, chosen of Ra

Neb Maat Ra
nb-mꜢꜤt-rꜤ
The possessor of the Maat of Ra

Men kheperu Ra
mn-ḫprw-rꜤ
Established manifestations of Ra

Aa kheperu Ra
ꜤꜢ-ḫprw-rꜤ
Great are the manifestations of Ra

Men kheper Ra
mn-ḫpr-rꜤ
Lasting is the Manifestation of Ra

Aa kheper en Ra
ꜤꜢ-ḫpr-n-rꜤ
Great is the manifestation of Ra

Aa kheper ka Ra
ꜤꜢ-ḫpr-kꜢ-rꜤ
Great is the manifestation of the soul of Ra

Djoser ka Ra
ḏsr-kꜢ-rꜤ
Holy is the soul of Ra

Neb pehty Ra
nb-pḥti-rꜤ
The Lord of the might is Ra

Neb hapet Ra
nb-ḥꜢpt-rꜤ
The Lord of the rudder is Ra

Sankh ka Ra
s-Ꜥnḫ-kꜢ-rꜤ
The one whom the ka of Ra has sustained

Sehotep ib Ra
s-ḥtp-ib-rꜤ
He who satisfies the heart of Ra

Kheper ka Ra
ḫpr-kꜢ-rꜤ
The Ka of Ra is created

Nebu ka Ra
nbw-kꜢ-rꜤ
Golden are the souls of Ra

Kha kheper Ra
ḫꜤ-ḫpr-rꜤ
The appearance of the manifestation of Ra

Kha ka Ra
ḫꜤ-kꜢ-rꜤ
The appearance of the kas of Ra

Ni Maat Ra
ni-mꜢꜤt-rꜤ
He who belongs to the Maat of Ra

Maa kheru Ra
mꜢꜤ-ḫrw-rꜤ
The righteous one of Ra

Sobek ka Ra
sbk-kꜢ-rꜤ
The ka of Sobek-Ra

Nefer ka Ra
nfr-kꜢ-rꜤ
The perfect one of the ka of Ra

Mer en Ra
mr-n-rꜤ
The one whom Ra has loved

Pepi
pipi
Pepi

Teti
tti
Teti

Unas
wnis
The one who truly exists

Maat ka Ra
mꜢꜤt-kꜢ-rꜤ
The soul of Ra is justified

Men ka Hor
mn-kꜢ-ḥr
The established one of the ka of Horus

Kha nefer Ra
ḫꜤ-nfr-rꜤ
The appearance of the perfection of Ra

Shepses ka Ra
špss-kꜢ-rꜤ
The noble one of the ka of Ra

Nefer ir ka Ra
nfr-ir-kꜢ-rꜤ
The perfect one whom the ka of Ra has made

Sahu Ra
sꜢḥw-rꜤ
Ra has endowed me

User kaf
wsr-kꜢ-f
His ka is strong

Unreadable
Hieroglyphs destroyed

Unreadable
Hieroglyphs destroyed

Unreadable
Hieroglyphs destroyed

Unreadable
Hieroglyphs destroyed

Men kau Ra
mn-kꜢ.w-rꜤ
Hieroglyphs destroyed. Incorrectly shown by Mariette 1864.

Khaf Ra
ḫꜤ.w-f-rꜤ
He appears (as) Ra

Djedef Ra
ḏd-f-rꜤ
Ra is his stability

Khufu
ḫwfw
He protects me

Sneferu
s-nfr-w
He has perfected me

Huni
ḥw-ni
The smiter

Neb ka Ra
nb-kꜢ-rꜤ
The Lord of the ka of Ra

Djoser Teti
ḏsr-tti
Teti is sacred

Djoser
ḏsr
The sacred one

Beby
bby
Beby

Hudjefa
ḥw-ḏfꜢ
“Omitted” <small>(i.e. name missing)</small>

Nefer ka Sokar
nfr-kꜢ-skr
The perfect one of the ka of Sokar

Nefer ka Ra
nfr-kꜢ-rꜤ
The appearance of the perfection of Ra

Senedj
snḏ
The frightful one

Wadjlas
wꜢḏ-l-s
Fresh of tongue

Ba netjeru
bꜢ-nṯrw
The spirit of the gods

Kakau
kꜢ-kꜢw
Bull of bulls

Netjeri bau
nṯr-bꜢw
Divine of might

Qebehu
ḳbḥw
He from the north

Meri bia pen
mri-biꜢ-pn
Beloved one of the throne