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A027104
Sum{T(n,k)*T(n,2n-k)}, 0<=k<=n, T given by
A027082
.
+0
1
1, 2, 6, 25, 93, 357, 1373, 5188, 19456, 72373, 267137, 979762, 3573058, 12965292, 46839228, 168552205, 604420933, 2160638253, 7701879217, 27384190634, 97138835970, 343846037094, 1214761031998, 4283924048755
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Maintained by
N. J. A. Sloane
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njas@research.att.com
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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.
AT&T Labs Research
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