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Search: id:A109572
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| 0, 1, 2, 6, 32, 200, 1536, 13664, 139264, 1595520, 20316160, 284534272, 4347396096, 71958415360, 1282685272064, 24497477345280, 499058556796928, 10802158189445120, 247567232110952448, 5989035387568652288
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OFFSET
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0,3
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COMMENT
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"Bernoulli numbers" for x/[1-tan(x)].
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MAPLE
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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
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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
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Cf. A057711.
Adjacent sequences: A109569 A109570 A109571 this_sequence A109573 A109574 A109575
Sequence in context: A108485 A018940 A055596 this_sequence A011820 A111550 A009686
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KEYWORD
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nonn
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AUTHOR
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Roger L. Bagula (rlbagulatftn(AT)yahoo.com), Jun 27 2005
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