A272686 Second differences of A078482.

0, 3, 10, 36, 134, 510, 1976, 7770, 30934, 124456, 505254, 2067250, 8516028, 35292978, 147045490, 615572172, 2587970166, 10922249958, 46257477232, 196532215226, 837432161710, 3577882539792, 15323984114822, 65781749593002, 282979540332660

Offset

0,2

Links

Table of n, a(n) for n=0..24.

Crossrefs

Cf. A078482, A272687.

Sequence in context: A277287 A119374 A371773 * A126188 A081909 A371873

Adjacent sequences: A272683 A272684 A272685 * A272687 A272688 A272689

Keyword

nonn

Author

N. J. A. Sloane, May 24 2016

Status

approved