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A081471 a(n) = A081470(n)/n. 5
2, 6, 40, 420, 6048, 84, 2471040, 1485, 400400, 36036, 2559871641600, 3640, 4981904040960000, 41860800, 124032, 3357585, 48825552622389903360000, 5383840, 226293587575139731046400000, 318780, 284169600, 351153024768000 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..22.

CROSSREFS

Cf. A081467, A081468, A081469, A081470, A081472, A061243.

Sequence in context: A318006 A292407 A274275 * A133939 A045846 A238818

Adjacent sequences:  A081468 A081469 A081470 * A081472 A081473 A081474

KEYWORD

nonn

AUTHOR

Amarnath Murthy, Mar 23 2003

EXTENSIONS

More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 06 2003

STATUS

approved

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Last modified August 7 06:02 EDT 2020. Contains 336274 sequences. (Running on oeis4.)