%I A000518 M5432 N2361
%S A000518 272,24611,515086,4456448,23750912,93241002,296327464,806453248,
%T A000518 1951153920,4300685074,8787223186,16878338048,30768878848,53624926972,
%U A000518 89982082488,146028888064,230022888960,353194774434,529896144586
%N A000518 Generalized tangent numbers.
%D A000518 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%D A000518 N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 
               (includes this sequence).
%D A000518 Knuth, D. E.; Buckholtz, Thomas J. Computation of tangent, Euler and 
               Bernoulli numbers. Math. Comp. 21 1967 663-688.
%D A000518 D. Shanks, Generalized Euler and class numbers, Math. Comp. 21 (1967), 
               689-694; 22 (1968), 699 [Kok Seng Chua reports that the Shanks reference 
               is the correct one, not Knuth-Buckholtz].
%Y A000518 Sequence in context: A000517 A023907 A035842 this_sequence A162009 A028467 
               A028679
%Y A000518 Adjacent sequences: A000515 A000516 A000517 this_sequence A000519 A000520 
               A000521
%K A000518 nonn
%O A000518 1,1
%A A000518 N. J. A. Sloane (njas(AT)research.att.com).
%E A000518 More terms from Kok Seng Chua (chuaks(AT)ihpc.nus.edu.sg), Jun 03 2000