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A248731 Number of digits in the decimal expansion of the number of partitions of 5^n. 5
1, 1, 4, 10, 25, 58, 135, 306, 690, 1550, 3474, 7776, 17398, 38912, 87022, 194598, 435148, 973034, 2175785 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..18.

MATHEMATICA

f[n_] := Floor[ Log[10, PartitionsP[ 5^n]] + 1]; Table[ f@n, {n, 0, 30}]

PROG

(MAGMA) [Floor(Log(10, (NumberOfPartitions(5^n))))+1: n in [0..8]]; // Vincenzo Librandi, Oct 13 2014

(PARI) a(n) = #Str(numbpart(5^n)); \\ Michel Marcus, Oct 16 2014

CROSSREFS

Cf. A129490, A248729, A248733, A248735, A077644, A248736, A248730.

Sequence in context: A113412 A227712 A159297 * A279101 A276599 A281867

Adjacent sequences:  A248728 A248729 A248730 * A248732 A248733 A248734

KEYWORD

nonn,base,more

AUTHOR

Robert G. Wilson v, Oct 12 2014

STATUS

approved

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Last modified August 4 06:58 EDT 2020. Contains 336201 sequences. (Running on oeis4.)