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A003457
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Ceiling of Bernoulli(2n)/(-4n).
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0
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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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OFFSET
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1,10
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REFERENCES
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Douglas C. Ravenel, Complex cobordism theory for number theorists, Lecture Notes in Mathematics, 1326, Springer-Verlag, Berlin-New York, 1988, pp. 123-133.
F. Hirzebruch et al., Manifolds and Modular Forms, Vieweg, 2nd ed. 1994, p. 130.
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LINKS
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Table of n, a(n) for n=1..23.
Index entries for sequences related to Bernoulli numbers.
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MATHEMATICA
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Table[Ceiling[BernoulliB[2n]/(-4n)], {n, 24}] (* Alonso del Arte, Jul 11 2012 *)
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CROSSREFS
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Cf. A003414 (floor instead of ceiling).
Sequence in context: A121034 A125402 A016290 * A016241 A131583 A011547
Adjacent sequences: A003454 A003455 A003456 * A003458 A003459 A003460
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KEYWORD
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sign
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AUTHOR
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N. J. A. Sloane.
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STATUS
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approved
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