login
A026694
T(2n,n-1), T given by A026692.
0
1, 4, 24, 89, 507, 1913, 10832, 41485, 234997, 909772, 5161736, 20142456, 114475100, 449409816, 2558062376, 10089877429, 57509594605, 227694240418, 1299311929720, 5160174433873, 29475731911575, 117362831079013, 670984236347368
OFFSET
1,2
CROSSREFS
Sequence in context: A061612 A097875 A212681 * A026967 A026977 A026952
KEYWORD
nonn
STATUS
approved