%I A109609
%S A109609 1,1,2,3,5,8,13,21,34,55,89,144,234,378,612,990,1602,2592,4194,6786,
%T A109609 10980,17766,28746,46512,75259,121771,197030,318801,515831,834632,
%U A109609 1350463,2185095,3535558,5720653,9256211,14976864,24233076,39209940
%N A109609 Expansion of 1/((x-1)*(x+1)*(x^2+x+1)*(x^2+x-1)*(x^2-x+1)*(x^2+1)*(x^4-x^2+1)).
%C A109609 FAMP Code for s batch of sequences satisfying the recurrence relation 
               as (a(n)): A*B with A = - .25'i - .25i' - .25'ii' + .25'jj' + .25'kk' 
               + .25'jk' + .25'kj' - .25e, B = + 'i + i' + 'ji' + 'ki' + e. Sumtype 
               is set to: sum[Y[15]]
%p A109609 seriestolist(series(1/((x-1)*(x+1)*(x^2+x+1)*(x^2+x-1)*(x^2-x+1)*(x^2+1)*(x^4-x^2+1)), 
               x=0,40));
%Y A109609 Cf. A000045.
%Y A109609 Sequence in context: A020695 A132916 A069041 this_sequence A073958 A074317 
               A077371
%Y A109609 Adjacent sequences: A109606 A109607 A109608 this_sequence A109610 A109611 
               A109612
%K A109609 nonn
%O A109609 0,3
%A A109609 Creighton Dement (creighton.k.dement(AT)uni-oldenburg.de), Jul 31 2005