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Search: id:A027120
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A027120 T(n,2n-2), T given by A027113. +0
1
2, 7, 20, 56, 155, 429, 1188, 3298, 9181, 25634, 71781, 201569, 567538, 1601971, 4532460, 12851882, 36516613, 103955432, 296471643, 846932919, 2423256440, 6943726380, 19924638557, 57247669927, 164688166948, 474323305547 (list; graph; listen)
OFFSET

2,1
CROSSREFS

Sequence in context: A000149 A080041 A049681 this_sequence A094982 A007460 A034899

Adjacent sequences: A027117 A027118 A027119 this_sequence A027121 A027122 A027123

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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