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A109572
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E.g.f.: x/[1-tan(x)].
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1
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0, 1, 2, 6, 32, 200, 1536, 13664, 139264, 1595520, 20316160, 284534272, 4347396096, 71958415360, 1282685272064, 24497477345280, 499058556796928, 10802158189445120, 247567232110952448, 5989035387568652288
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,3
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COMMENTS
| "Bernoulli numbers" for x/[1-tan(x)].
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MAPLE
| G:=x/(1-tan(x)): Gser:=series(G, x=0, 25): 0, seq(n!*coeff(Gser, x^n), n=1..22);
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MATHEMATICA
| g[x_] = x/(-1 + Tan[x]) h[x_, n_] = Dt[g[x], {x, n}] a[x_] = Table[ -h[x, n], {n, 0, 50}]; b = a[0]
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CROSSREFS
| Cf. A057711.
Sequence in context: A108485 A018940 A055596 * A011820 A206300 A111550
Adjacent sequences: A109569 A109570 A109571 * A109573 A109574 A109575
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KEYWORD
| nonn
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AUTHOR
| Roger L. Bagula (rlbagulatftn(AT)yahoo.com), Jun 27 2005
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