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Search: id:A026566
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A026566 a(n) = Sum{T(i,j)}, 0<=j<=i, 0<=i<=n, T given by A026552. +0
2
1, 3, 9, 20, 53, 117, 308, 684, 1806, 4028, 10664, 23844, 63239, 141612, 376026, 842866, 2239900, 5024166, 13359408, 29980384, 79753402, 179044760, 476451644, 1069936084, 2847931619, 6396900694, 17030741437, 38260956765 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Cf. A026564.

Sequence in context: A073801 A065891 A147328 this_sequence A147356 A147416 A078841

Adjacent sequences: A026563 A026564 A026565 this_sequence A026567 A026568 A026569

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified December 2 11:54 EST 2009. Contains 167921 sequences.

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