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Search: id:A027985
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A027985 a(n) = Sum{T(n,k)*T(n,k+1)}, 0<=k<=2n-1, T given by A027960. +0
1
6, 35, 144, 564, 2186, 8468, 32856, 127729, 497454, 1940525, 7580656, 29651385, 116111194, 455138499, 1785707924, 7011933544, 27554583254, 108355491404, 426368213364, 1678704356644, 6613026412314, 26064305550054, 102777232982624 (list; graph; listen)
OFFSET

1,1
CROSSREFS

Sequence in context: A089581 A132657 A161784 this_sequence A078799 A026957 A026987

Adjacent sequences: A027982 A027983 A027984 this_sequence A027986 A027987 A027988

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified December 6 22:55 EST 2009. Contains 170429 sequences.

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