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Search: id:A027105
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A027105 a(n) =Sum{T(n,k)*T(n,2n-k)}, 0<=k<=n-1, T given by A027082. +0
1
1, 5, 16, 68, 276, 1084, 4227, 16207, 61348, 229888, 853737, 3146649, 11522891, 41959547, 152044236, 548575204, 1971713228, 7062750256, 25222033633, 89824310345, 319101174069, 1131049761757, 4000730847474, 14124602551114 (list; graph; listen)
OFFSET

1,2
CROSSREFS

Sequence in context: A007043 A128242 A166932 this_sequence A042087 A151465 A151474

Adjacent sequences: A027102 A027103 A027104 this_sequence A027106 A027107 A027108

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

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