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A027109 Sum{T(n,k)*T(n,n+k)}, 0<=k<=n, T given by A027082. +0
1
1, 2, 6, 29, 131, 619, 3013, 14854, 73996, 372023, 1883369, 9591012, 49091034, 252371780, 1302419484, 6744389329, 35031370911, 182457629783, 952674694705, 4985494458892, 26143834054498, 137358293523986, 722938114992478 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Sequence in context: A002047 A126340 A136639 this_sequence A107375 A020126 A124529

Adjacent sequences: A027106 A027107 A027108 this_sequence A027110 A027111 A027112

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified December 16 17:18 EST 2009. Contains 170825 sequences.

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