A284568 a(n) = n! / A284567(n).

1, 1, 1, 1, 1, 1, 36, 36, 576, 576, 57600, 57600, 57600, 57600, 2822400, 25401600, 25401600, 25401600, 8230118400, 8230118400, 3292047360000, 3292047360000, 398337730560000, 398337730560000, 14340158300160000, 14340158300160000, 2423486752727040000, 2423486752727040000, 1900013614137999360000, 1900013614137999360000

Offset

0,7

Links

Antti Karttunen, Table of n, a(n) for n = 0..120

Formula

a(n) = A000142(n) / A284567(n) = n! / A284567(n).

Prog

(Scheme) (define (A284568 n) (/ (A000142 n) (A284567 n)))

Crossrefs

Cf. A000142, A284567.

Sequence in context: A124511 A081445 A081449 * A165857 A218052 A098079

Adjacent sequences: A284565 A284566 A284567 * A284569 A284570 A284571

Keyword

nonn

Author

Antti Karttunen, Apr 12 2017

Status

approved