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A228448 a(n) = floor(n!/3^n). 0
1, 0, 0, 0, 0, 0, 0, 2, 6, 18, 61, 225, 901, 3905, 18226, 91134, 486048, 2754274, 16525645, 104662422, 697749481, 4884246371, 35817806721, 274603184861, 2196825478892, 18306878990770, 158659617920008, 1427936561280078, 13327407905280733, 128831609751047086 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,8
LINKS
MATHEMATICA
Table[Floor[n!/3^n], {n, 0, 30}] (* Harvey P. Dale, May 24 2018 *)
PROG
(Python)
import math
for n in range(99): print str(math.factorial(n)/(3**n))+', ',
CROSSREFS
Sequence in context: A150051 A148462 A123639 * A346490 A177473 A177471
KEYWORD
nonn,less
AUTHOR
Alex Ratushnyak, Oct 27 2013
STATUS
approved

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Last modified June 15 19:43 EDT 2024. Contains 373410 sequences. (Running on oeis4.)