A026576 T(2n,n-2), T given by A026568.

1, 3, 18, 65, 346, 1288, 6818, 25518, 136152, 510532, 2745347, 10309234, 55784794, 209766714, 1140670242, 4294635438, 23445204441

Offset

2,2

Links

Table of n, a(n) for n=2..18.

Crossrefs

Sequence in context: A317404 A110689 A027333 * A048899 A337142 A107583

Adjacent sequences: A026573 A026574 A026575 * A026577 A026578 A026579

Keyword

nonn

Author

Clark Kimberling

Status

approved