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A027233
a(n) = Sum_{k=0..n-2} T(n,k) * T(n,k+2), with T given by A026758.
0
1, 7, 34, 184, 785, 4107, 16894, 88397, 358212, 1892182, 7609892, 40695540, 162938176, 882569071, 3523144085, 19320028921, 76956041950, 426863069443, 1697410759579, 9513773568608, 37779519792187, 213739273560729, 847809431322520, 4836704323382544, 19167125562029304
OFFSET
2,2
CROSSREFS
Sequence in context: A080048 A177140 A372411 * A117650 A370618 A365474
KEYWORD
nonn
EXTENSIONS
More terms from Sean A. Irvine, Oct 24 2019
STATUS
approved