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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 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,2

LINKS

Table of n, a(n) for n=2..26.

CROSSREFS

Sequence in context: A209807 A080048 A177140 * A117650 A273221 A144038

Adjacent sequences:  A027230 A027231 A027232 * A027234 A027235 A027236

KEYWORD

nonn

AUTHOR

Clark Kimberling

EXTENSIONS

More terms from Sean A. Irvine, Oct 24 2019

STATUS

approved

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Last modified September 19 18:36 EDT 2021. Contains 347564 sequences. (Running on oeis4.)