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Search: id:A027996
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A027996 a(n)=Sum{T(n,k)*T(n,k+2)}, 0<=k<=2n-2, T given by A027926. +0
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6, 26, 106, 424, 1684, 6667, 26352, 104069, 410806, 1621325, 6398688, 25254823, 99691822, 393600358, 1554333406, 6139498384, 24256359424, 95857063972, 378903471934, 1498090689910, 5924490920776, 23435015022946, 92721024432286 (list; graph; listen)
OFFSET

2,1

CROSSREFS

Sequence in context: A034560 A143955 A037545 this_sequence A020989 A079675 A113991

Adjacent sequences: A027993 A027994 A027995 this_sequence A027997 A027998 A027999

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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