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A027303 Sum{T(n,k)*T(n,k+2)}, 0<=k<=[ (n-3)/2 ], T given by A008315. +0
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2, 5, 34, 98, 496, 1545, 7010, 22924, 98636, 333463, 1393014, 4824350, 19795200, 69818507, 283195638, 1013208668, 4078132240, 14758843463, 59087809638, 215859015800, 860951003152 (list; graph; listen)
OFFSET

3,1

CROSSREFS

Sequence in context: A019037 A019038 A114793 this_sequence A052695 A002665 A000665

Adjacent sequences: A027300 A027301 A027302 this_sequence A027304 A027305 A027306

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified November 27 14:50 EST 2009. Contains 167570 sequences.


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