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A003272
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a(n) = ceiling((-4n)/Bernoulli(2n)).
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1
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0, -24, 240, -504, 480, -264, 95, -24, 5, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,2
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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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MATHEMATICA
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Table[Ceiling[(-4n)/BernoulliB[2n]], {n, 0, 75}] (* Alonso del Arte, Jul 19 2012 *)
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PROG
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(PARI) vector(75, n, n--; ceil(-4*n/bernfrac(2*n))) \\ G. C. Greubel, Jul 04 2019
(Magma) [Ceiling(-4*n/Bernoulli(2*n)): n in [0..75]]; // G. C. Greubel, Jul 04 2019
(Sage) [ceil(-4*n/bernoulli(2*n)) for n in (0..75)] # G. C. Greubel, Jul 04 2019
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CROSSREFS
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KEYWORD
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sign
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AUTHOR
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STATUS
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approved
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