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A051603 Expansion of square of g.f. for A051573. 1
1, 2, 3, 6, 11, 26, 58, 142, 351, 890, 2282, 5948, 15624, 41442, 110703, 297676, 804892, 2187490, 5971392, 16366734, 45021391, 124253828, 343956858, 954760502, 2656946827, 7411140120, 20716895918, 58027609028, 162837485745 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

CROSSREFS

Cf. A052250, A051573.

Sequence in context: A107113 A156807 A032256 * A094927 A024423 A115114

Adjacent sequences:  A051600 A051601 A051602 * A051604 A051605 A051606

KEYWORD

nonn

AUTHOR

D.Broadhurst(AT)open.ac.uk

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Last modified February 15 18:22 EST 2012. Contains 205835 sequences.