A026696 T(2n-1,n-1), T given by A026692.

1, 3, 15, 54, 281, 1069, 5682, 22196, 119437, 473871, 2570259, 10302254, 56189736, 226854572, 1242353004, 5042768384, 27702888589, 112915371783, 621846132945, 2543004195610, 14032879286593, 57541490484761, 318053061106482

Offset

1,2

Links

Table of n, a(n) for n=1..23.

Crossrefs

Sequence in context: A085480 A265974 A099581 * A082708 A093925 A117960

Adjacent sequences: A026693 A026694 A026695 * A026697 A026698 A026699

Keyword

nonn

Author

Clark Kimberling

Status

approved