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A026949 a(n) = Sum{T(n,k)*T(n,k+3)}, 0<=k<=n-3, T given by A026374. 0
1, 12, 83, 630, 3171, 21672, 97482, 639180, 2730615, 17543196, 72932904, 463291920, 1895949055, 11961944400, 48478715240, 304543085040 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,2

LINKS

Table of n, a(n) for n=3..18.

CROSSREFS

Sequence in context: A252179 A102105 A275743 * A165127 A213347 A075476

Adjacent sequences:  A026946 A026947 A026948 * A026950 A026951 A026952

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified January 22 05:11 EST 2019. Contains 319353 sequences. (Running on oeis4.)