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A117381
Expansion of 1/((1-4*x*c(x))(1-x^2*c(x))), c(x) the g.f. of
A000108
.
+0
2
1, 4, 21, 109, 575, 3047, 16192, 86171, 458972, 2445825, 13037508, 69509558, 370634265, 1976421031, 10539858413, 56208784808, 299766435277, 1598704176149, 8526238418811, 45472594256564, 242517996824355
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Maintained by
N. J. A. Sloane
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njas@research.att.com
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Last modified December 16 13:01 EST 2009. Contains 170825 sequences.
AT&T Labs Research
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