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A026878
a(n) = T(2n+1,n+3), T given by A026758.
0
1, 7, 37, 177, 809, 3614, 15959, 70101, 307442, 1349374, 5935806, 26195458, 116049130, 516291384, 2307167923, 10357044612, 46705335181, 211564961875, 962540059715, 4397719306200, 20174135878046, 92905048669662, 429412711250262
OFFSET
2,2
CROSSREFS
Cf. A026758.
Sequence in context: A006419 A277178 A026673 * A026862 A026889 A356338
KEYWORD
nonn
STATUS
approved