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A030806
a(n) = floor(exp(1/24)*n!).
0
1, 2, 6, 25, 125, 750, 5254, 42035, 378319, 3783194, 41615136, 499381635, 6491961263, 90887457690, 1363311865354, 21812989845674, 370820827376472, 6674774892776503, 126820722962753557, 2536414459255071150
OFFSET
1,2
PROG
(PARI) a(n) = floor(exp(1/24)*n!); \\ Jinyuan Wang, Apr 08 2020
CROSSREFS
Sequence in context: A074010 A352660 A349088 * A030828 A030839 A030851
KEYWORD
nonn,easy
AUTHOR
STATUS
approved