A256412 Column 2 of triangle in A256411.

8, 37, 145, 452, 1374, 3933

Offset

2,1

Links

Table of n, a(n) for n=2..7.

Crossrefs

Cf. A256411.

Sequence in context: A035038 A240188 A294372 * A272731 A272806 A272783

Adjacent sequences: A256409 A256410 A256411 * A256413 A256414 A256415

Keyword

nonn,more

Author

N. J. A. Sloane, Apr 03 2015

Status

approved