# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a260329 Showing 1-1 of 1 %I A260329 #11 Jan 25 2020 03:49:27 %S A260329 6,2,10,1,84,4,90,5,44,4,5460,70,360,24,102,1,1596,28,1980,66,2760,40, %T A260329 81900,273,1512,56,1160,20,114576,1232,117810,1785,420,4,109668,494, %U A260329 936,24,27060 %N A260329 Denominator of generalized Bernoulli number B_n^{(n-1)}. %H A260329 N. E. Nørlund, Vorlesungen ueber Differenzenrechnung Springer 1924, p. 461. %H A260329 N. E. Nörlund, Vorlesungen über Differenzenrechnung, Springer-Verlag, Berlin, 1924; page 461 [Annotated scanned copy of pages 144-151 and 456-463] %t A260329 a[n_] := Integrate[(n-t-1)*Pochhammer[t-n+2, n-1], {t, 0, 1}]*(n-1) // Denominator; %t A260329 a /@ Range[2, 40] (* _Jean-François Alcover_, Jan 24 2020, from the formula used in the bisections *) %Y A260329 Cf. A260328. %K A260329 nonn,frac %O A260329 2,1 %A A260329 _N. J. A. Sloane_, Jul 25 2015 %E A260329 More terms from _Jean-François Alcover_, Jan 25 2020 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE