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A027857 Number of positive divisors of n!, read mod n. 0
0, 0, 1, 0, 1, 0, 4, 0, 7, 0, 1, 0, 11, 2, 12, 0, 8, 0, 2, 0, 5, 14, 19, 0, 7, 4, 0, 0, 20, 0, 7, 0, 24, 22, 2, 0, 11, 6, 9, 0, 10, 0, 24, 4, 0, 30, 21, 0, 45, 30, 12, 0, 40, 0, 30, 0, 39, 32, 50, 0, 28, 52, 18, 0, 59, 0, 25, 24, 15, 0, 40, 0, 59, 48, 15, 0, 23, 0, 62, 0, 54, 0, 69, 0, 80 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,7

LINKS

Table of n, a(n) for n=1..85.

MATHEMATICA

Table[Mod[DivisorSigma[0, n!], n], {n, 90}] (* Harvey P. Dale, Sep 20 2011 *)

CROSSREFS

Cf. A027423.

Sequence in context: A222832 A279871 A223052 * A052400 A354450 A199071

Adjacent sequences: A027854 A027855 A027856 * A027858 A027859 A027860

KEYWORD

nonn

AUTHOR

Leroy Quet.

EXTENSIONS

More terms from James A. Sellers

STATUS

approved

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Last modified February 7 10:30 EST 2023. Contains 360115 sequences. (Running on oeis4.)