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A026952
Sum{T(n,k)*T(n,k+1)}, 0<=k<=n-1, T given by
A026386
.
+0
1
1, 4, 24, 90, 541, 2032, 12275, 46472, 282003, 1075404, 6549906, 25125114, 153481299, 591529776, 3622111560, 14013307170, 85975792075, 333669151420
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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 15 00:47 EST 2009. Contains 170825 sequences.
AT&T Labs Research
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