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A197954
Duplicate of A124903.
0
2, 12, 30, 240, 720, 60480, 60480, 7983360, 1108800, 518918400, 21794572800, 62270208000, 87178291200, 35568742809600, 2, 40548366802944000, 304112751022080000, 851515702861824000, 2534272925184000, 5170403347776995328000, 51704033477769953280000
OFFSET
5,1
CROSSREFS
Sequence in context: A083175 A019258 A124903 * A276451 A075352 A116655
KEYWORD
dead
AUTHOR
Artur Jasinski, Oct 19 2011
STATUS
approved