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A027255 Sum{T(n,k)*T(n,k+3), 0<=k<=n-3, T given by A026703. +0
1
1, 12, 97, 618, 3841, 21050, 119447, 615402, 3346316, 16708316, 88765368, 435341688, 2280888072, 11063821616, 57457039508, 276725405106 (list; graph; listen)
OFFSET

3,2
CROSSREFS

Sequence in context: A073392 A038845 A059375 this_sequence A121791 A016753 A078605

Adjacent sequences: A027252 A027253 A027254 this_sequence A027256 A027257 A027258

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified December 3 16:57 EST 2008. Contains 151279 sequences.

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