A026688 T(n,0) + T(n,1) + ... + T(n,n), T given by A026681.

1, 2, 5, 12, 26, 54, 120, 276, 606, 1288, 2852, 6484, 14256, 30542, 67568, 152806, 336154, 723272, 1599350, 3605454, 7934180, 17118882, 37843218, 85124418, 187367718, 405074498, 895273414, 2010559668, 4426193834

Offset

0,2

Links

Table of n, a(n) for n=0..28.

Crossrefs

Sequence in context: A297618 A360785 A198896 * A116726 A228078 A125180

Adjacent sequences: A026685 A026686 A026687 * A026689 A026690 A026691

Keyword

nonn

Author

Clark Kimberling

Status

approved