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A248735 revision #11

A248735

Number of digits in the decimal expansion of the number of partitions of 7^n.

5

1, 2, 6, 18, 51, 140, 377, 1005, 2668, 7069, 18714, 49527, 131052, 346746, 917422, 2427289

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,2

LINKS

Table of n, a(n) for n=0..15.

MATHEMATICA

f[n_] := Floor[ Log[10, PartitionsP[ 7^n]] + 1]; Table[ f@n, {n, 0, 15}]

PROG

(MAGMA) [Floor(Log(10, (NumberOfPartitions(7^n))))+1: n in [0..6]]; // Vincenzo Librandi, Oct 13 2014

(PARI) a(n) = #Str(numbpart(7^n)); \\ Michel Marcus, Oct 16 2014

CROSSREFS

Cf. A000041, A129490, A248729, A248731, A248733, A077644, A248736, A248734.

Sequence in context: A199770 A204322 A196593 * A219136 A192237 A034525

Adjacent sequences: A248732 A248733 A248734 * A248736 A248737 A248738

KEYWORD

nonn,base,more

AUTHOR

Robert G. Wilson v, Oct 12 2014

STATUS

approved