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Search: id:A026580
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A026580 T(n,0) + T(n,1) + ... + T(n,n), T given by A026568. +0
1
1, 2, 5, 12, 30, 75, 189, 478, 1211, 3076, 7818, 19901, 50680, 129179, 329383, 840336, 2144540, 5474889, 13980493, 35709394, 91228015, 233108456, 595740568, 1522725379, 3892624055, 9952119054, 25446913766, 65072487645 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Sequence in context: A000106 A076883 A140832 this_sequence A092247 A108360 A051163

Adjacent sequences: A026577 A026578 A026579 this_sequence A026581 A026582 A026583

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified December 9 14:43 EST 2009. Contains 170430 sequences.

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