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Search: id:A027212
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A027212 a(n) = Sum{(k+1)*T(n,n-k), 0<=k<=n, T given by A026725. +0
1
1, 3, 8, 23, 55, 144, 328, 816, 1808, 4358, 9485, 22377, 48097, 111720, 237917, 546161, 1154827, 2626624, 5522464, 12467540, 26092324, 58546544, 122059348, 272479782, 566242186, 1258568324, 2608232758, 5775620396, 11940756076 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Sequence in context: A093537 A073051 A068602 this_sequence A027236 A027244 A108457

Adjacent sequences: A027209 A027210 A027211 this_sequence A027213 A027214 A027215

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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