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 A174290 Numerators of the inverse binomial transform of the sequence of nonzero Bernoulli numbers. 2
 1, -3, 13, -91, 291, -1187, 18017, -114949, 122399, -27857449, 118047751, -18228890369, 594111334397, -17200311140979, 773613644762857, -398027494487496919, 7730820144185428909, -6072430940814524211839 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS The sequence of nonzero Bernoulli numbers is B(0), B(1), B(2), B(4), B(6) etc. Its inverse Bernoulli transform is 1, -3/2, 13/6, -91/30, 291/70, -1187/210, 18017/2310,... The current sequence is defined by extracting the numerators. LINKS Table of n, a(n) for n=0..17. MAPLE read("transforms") ; A174290 := proc(n) [1, -1/2, seq(bernoulli(2*i), i=1..30)] ; BINOMIALi(%) ; numer(op(n+1, %)) ; end proc: seq(A174290(n), n=0..30) ; # R. J. Mathar, Jan 21 2011 CROSSREFS Cf. A174276 (denominators), A174289. Sequence in context: A114477 A345104 A116434 * A034513 A257661 A292501 Adjacent sequences: A174287 A174288 A174289 * A174291 A174292 A174293 KEYWORD frac,sign,easy AUTHOR Paul Curtz, Mar 15 2010 STATUS approved

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Last modified December 8 03:15 EST 2023. Contains 367662 sequences. (Running on oeis4.)