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 A140814 a(0)=3, a(n)=A002445(n) for n >= 1. 2
 3, 6, 30, 42, 30, 66, 2730, 6, 510, 798, 330, 138, 2730, 6, 870, 14322, 510, 6, 1919190, 6, 13530, 1806, 690, 282, 46410, 66, 1590, 798, 870, 354, 56786730, 6, 510, 64722, 30, 4686, 140100870, 6, 30, 3318, 230010, 498, 3404310, 6, 61410, 272118, 1410, 6 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS Vincenzo Librandi, Table of n, a(n) for n = 0..1000 FORMULA a(n) = A106458(2*n) + A106458(2*n+1). a(n) = A027762(n) for n >= 1. - Georg Fischer, Nov 03 2018 MATHEMATICA Join[{3}, Table[Denominator[BernoulliB[2 n]], {n, 60}]] (* Vincenzo Librandi, Nov 04 2018 *) PROG (Magma) [3] cat [Denominator(Bernoulli(2*n)): n in [1..60]]; // Vincenzo Librandi, Nov 04 2018 CROSSREFS Cf. A027762, A140816. Sequence in context: A275786 A025555 A200925 * A343433 A136932 A136945 Adjacent sequences: A140811 A140812 A140813 * A140815 A140816 A140817 KEYWORD nonn,less AUTHOR Paul Curtz, Jul 16 2008 EXTENSIONS Edited and extended by R. J. Mathar, Jul 29 2008 STATUS approved

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Last modified February 23 17:43 EST 2024. Contains 370283 sequences. (Running on oeis4.)