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A026696
T(2n-1,n-1), T given by A026692.
0
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
CROSSREFS
Sequence in context: A085480 A265974 A099581 * A082708 A093925 A117960
KEYWORD
nonn
STATUS
approved