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A003457
Ceiling of B_{2n}/(-4n).
+0
1
0, 1, 0, 1, 0, 1, 0, 1, -1, 14, -140, 1804, -27413, 487469, -10026347, 236192434, -6317862397, 190439655627, -6425425249652, 241207241774251, -10020155328258126, 458387180159766539, -22989944171828251745
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Maintained by
N. J. A. Sloane
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njas@research.att.com
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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.
AT&T Labs Research
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