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 A213450 Numerators of higher order Bernoulli numbers. (Formerly N2200) 2
 1, 19, 4315, 237671, 9751299, 150653570023, 1719676921651, 111956703448001, 515820397142126323, 234948724145929620551, 146676714003698721466337, 2335491919795216159716047077, 27307173331136364105327316225, 15462805586388260782721906167299 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS See Nørlund for precise definition. REFERENCES N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence). LINKS N. E. Nørlund, Vorlesungen über Differenzenrechnung, Springer, 1924, p. 461. MAPLE A213450 := proc(n)         local nu ;         nu := 2*n+2 ;         mul(t-i, i=0..nu-1) ;         int(%, t=0..1)*(nu-1) ;         abs(numer( %)) ; end proc: seq(A213450(n), n=0..15) ; # R. J. Mathar, Jun 26 2012 MATHEMATICA a[n_] := With[{nu = 2n+2}, Integrate[Product[t-i, {i, 0, nu-1}], {t, 0, 1}]*(nu-1) // Numerator // Abs]; a /@ Range[0, 13] (* Jean-François Alcover, Jan 24 2020, after R. J. Mathar *) CROSSREFS Sequence in context: A125197 A238563 A281820 * A099809 A271588 A233464 Adjacent sequences:  A213447 A213448 A213449 * A213451 A213452 A213453 KEYWORD nonn,frac AUTHOR N. J. A. Sloane, Jun 12 2012 STATUS approved

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Last modified September 28 10:48 EDT 2021. Contains 347714 sequences. (Running on oeis4.)