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A026088
a(n) = T(2n-1,n), where T is the array defined in A026082.
0
1, 3, 8, 52, 294, 1691, 9736, 56277, 326430, 1899530, 11085360, 64857925, 380331474, 2234804775, 13155328400, 77565394650, 458003596050, 2707970743326, 16030265384752, 94997726453172
OFFSET
1,2
CROSSREFS
Sequence in context: A019035 A241469 A153385 * A354851 A322461 A192647
KEYWORD
nonn
STATUS
approved