%I A122045
%S A122045 1,0,1,0,5,0,61,0,1385,0,50521,0,2702765,0,199360981,0,19391512145,0,
%T A122045 2404879675441,0,370371188237525,0,69348874393137901,0,15514534163557086905,
               0,
%U A122045 4087072509293123892361,0,1252259641403629865468285,0,441543893249023104553682821
%V A122045 1,0,-1,0,5,0,-61,0,1385,0,-50521,0,2702765,0,-199360981,0,19391512145,
               0,
%W A122045 -2404879675441,0,370371188237525,0,-69348874393137901,0,15514534163557086905,
               0,
%X A122045 -4087072509293123892361,0,1252259641403629865468285,0,-441543893249023104553682821
%N A122045 Euler (or secant) numbers E(n).
%C A122045 The convention in the OEIS is that the alternate zeros are normally omitted 
               in such sequences. See A000364 for the official version of this sequence.
%p A122045 seq(euler(n) , n=0..31); [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), 
               Mar 15 2009]
%t A122045 Table[EulerE[n], {n, 0, 30}]
%o A122045 (Other) SAGE: [euler_number(i) for i in range(31)]# [From Zerinvary Lajos 
               (zerinvarylajos(AT)yahoo.com), Mar 15 2009]
%Y A122045 Cf. A000364, A028296.
%Y A122045 Sequence in context: A070611 A047769 A103709 this_sequence A073911 A157302 
               A036946
%Y A122045 Adjacent sequences: A122042 A122043 A122044 this_sequence A122046 A122047 
               A122048
%K A122045 sign
%O A122045 0,5
%A A122045 Roger Bagula (rlbagulatftn(AT)yahoo.com), Sep 13 2006
%E A122045 Edited by N. J. A. Sloane (njas(AT)research.att.com), Sep 17 2006