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A088984 (n!!)^2-n!. 0
2, 3, 40, 105, 1584, 5985, 107136, 530145, 11116800, 68139225, 1644364800, 12034447425, 329001523200, 2801155982625, 85619242598400, 831764543234625, 28117244819865600, 307025061241523625, 11374945402060800000 (list; graph; refs; listen; history; internal format)
OFFSET

2,1

CROSSREFS

Sequence in context: A076724 A080393 A111683 * A097170 A176366 A157132

Adjacent sequences:  A088981 A088982 A088983 * A088985 A088986 A088987

KEYWORD

nonn

AUTHOR

Vladeta Jovovic (vladeta(AT)eunet.rs), Oct 31 2003

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Last modified February 16 12:15 EST 2012. Contains 205909 sequences.