A112362 a(n) = A006967(n)/2.

1, 2, 2, 4, 12, 16, 20, 60, 148, 324, 664, 1600, 4956, 12796, 27960, 71596, 255348, 725648, 1748672, 5225912, 19285352, 59457496, 157617936, 507412376, 1981842248, 6583065076, 18923150952, 65253983544, 266659315468, 942275107988, 2900060695968

Offset

2,2

Links

Table of n, a(n) for n=2..32.

Crossrefs

Cf. A006967.

Sequence in context: A134435 A136718 A362709 * A134720 A019225 A002840

Adjacent sequences: A112359 A112360 A112361 * A112363 A112364 A112365

Keyword

nonn

Author

N. J. A. Sloane, Dec 02 2005

Status

approved