A124903 a(n) = n!/A124901(n).

2, 12, 30, 240, 720, 60480, 60480, 7983360, 1108800, 518918400, 21794572800, 62270208000, 87178291200, 35568742809600, 2, 40548366802944000, 304112751022080000, 851515702861824000, 2534272925184000, 5170403347776995328000, 51704033477769953280000

Offset: 5

Author

Artur Jasinski, Nov 12 2006

Keywords

• nonn

Crossrefs

Cf. A124900, A124901, A124902.

Extensions

More terms from the data at A124901 added by Amiram Eldar, Mar 12 2020