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A026684
T(2n,n-2), T given by
A026681
.
0
1, 11, 50, 352, 1412, 9012, 35218, 216556, 841161, 5080487, 19727183, 117977884, 458783666, 2727417052, 10627866041, 62938875136, 245774605829, 1451708319833, 5680430498730, 33491080099092, 131295252750566, 773074959646212
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OFFSET
2,2
LINKS
Table of n, a(n) for n=2..23.
CROSSREFS
Sequence in context:
A167423
A026618
A266034
*
A181619
A067983
A175360
Adjacent sequences:
A026681
A026682
A026683
*
A026685
A026686
A026687
KEYWORD
nonn
AUTHOR
Clark Kimberling
STATUS
approved
