A136773 - OEIS

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A136773

n! never ends in this many 0's in base 13.

13, 27, 41, 55, 69, 83, 97, 111, 125, 139, 153, 167, 181, 182, 196, 210, 224, 238, 252, 266, 280, 294, 308, 322, 336, 350, 364, 365, 379, 393, 407, 421, 435, 449, 463, 477, 491, 505, 519, 533, 547, 548, 562, 576, 590, 604, 618, 632, 646, 660, 674, 688, 702

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

OFFSET

1,1

LINKS

Charles R Greathouse IV, Table of n, a(n) for n = 1..10000

PROG

(PARI) valp(n, p)=my(s); while(n\=p, s+=n); s

is(n)=my(t=(12*n-1)\13*13+13, s=valp(t, 13)-n); while(s<0, s+=valuation(t+=13, 13)); s>0 \\ Charles R Greathouse IV, Oct 19 2016

CROSSREFS

Cf. A000142, A136763, A136699, A000966, A055938, A096346, A136767, A136768, A136769, A136770, A136771, A136772, A136774.

Sequence in context: A041330 A041765 A041328 * A358053 A189528 A132755

Adjacent sequences: A136770 A136771 A136772 * A136774 A136775 A136776

KEYWORD

base,nonn

AUTHOR

Carl R. White, Jan 21 2008

STATUS

approved