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Search: id:A026531
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A026531 a(n) = T(n,0) + T(n,1) + ... + T(n,n), T given by A026519. +0
2
1, 2, 4, 11, 22, 64, 127, 376, 746, 2222, 4414, 13180, 26215, 78373, 156041, 466840, 930194, 2784266, 5550976, 16620976, 33152042, 99291358, 198115526, 593484440, 1184511095, 3548969075, 7084871668, 21230215328, 42390336619 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Cf. A026533.

Sequence in context: A018480 A004646 A072205 this_sequence A038047 A061152 A006452

Adjacent sequences: A026528 A026529 A026530 this_sequence A026532 A026533 A026534

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified August 28 22:44 EDT 2008. Contains 143251 sequences.

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