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Search: id:A027057
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A027057 (1/2)*T(n,2n-1), T given by A027052. +0
1
1, 2, 4, 9, 21, 51, 128, 329, 861, 2285, 6132, 16606, 45313, 124446, 343680, 953753, 2658133, 7436541, 20875972, 58783892, 165989825, 469903672, 1333359488, 3791535934, 10802911297, 30836181436, 88169413364, 252500533673 (list; graph; listen)
OFFSET

2,2
CROSSREFS

Sequence in context: A166587 A086246 A001006 this_sequence A148071 A000636 A136753

Adjacent sequences: A027054 A027055 A027056 this_sequence A027058 A027059 A027060

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified December 10 00:48 EST 2009. Contains 170565 sequences.

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