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A026643 T(n,[ n/2 ]), T given by A026637. +0
1
1, 1, 2, 4, 8, 13, 26, 46, 92, 166, 332, 610, 1220, 2269, 4538, 8518, 17036, 32206, 64412, 122464, 244928, 467842, 935684, 1794196, 3588392, 6903352, 13806704, 26635774, 53271548, 103020253, 206040506, 399300166, 798600332 (list; graph; listen)
OFFSET

0,3
CROSSREFS

Sequence in context: A043816 A048328 A094767 this_sequence A018285 A026665 A113553

Adjacent sequences: A026640 A026641 A026642 this_sequence A026644 A026645 A026646

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

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