A026693 T(2n,n), T given by A026692.

1, 2, 8, 30, 138, 562, 2700, 11364, 55756, 238874, 1186616, 5140518, 25745026, 112379472, 566088616, 2484706008, 12570242776, 55405777178, 281236520744, 1243692265890, 6329700657110, 28065758573186, 143148739542708, 636106122212964

Offset

0,2

Links

Table of n, a(n) for n=0..23.

Crossrefs

Sequence in context: A150789 A150790 A150791 * A150792 A302187 A266043

Adjacent sequences: A026690 A026691 A026692 * A026694 A026695 A026696

Keyword

nonn

Author

Clark Kimberling

Status

approved