A274303 A bisection of A007346.

8, 24, 7680, 64, 3715891200, 194641920, 1428329123020800, 160, 1678343852714360832000, 637770664031457116160000, 4714400748520531002654720000, 2602349213183333113465405440000, 27064431817106664380040216576000000

Offset

0,1

Links

Table of n, a(n) for n=0..12.

Crossrefs

Cf. A007346, A002866, A002671.

Sequence in context: A050893 A037025 A105063 * A132586 A208400 A103953

Adjacent sequences: A274300 A274301 A274302 * A274304 A274305 A274306

Keyword

nonn

Author

N. J. A. Sloane, Jun 20 2016

Status

approved