A092187 A092186(n)/2.

1, 1, 4, 6, 36, 72, 576, 1440, 14400, 43200, 518400, 1814400, 25401600, 101606400, 1625702400, 7315660800, 131681894400, 658409472000, 13168189440000, 72425041920000, 1593350922240000, 9560105533440000, 229442532802560000, 1491376463216640000, 38775788043632640000

Offset: 2

Author

N. J. A. Sloane, Apr 02 2004

Keywords

• nonn