%I A131132
%S A131132 1,1,2,3,5,8,14,22,36,58,94,152,247,399,646,1045,1691,2736,4428,7164,11592,
%T A131132 18756,30348,49104,79453,128557,208010,336567,544577,881144,1425722,2306866,
%U A131132 3732588,6039454,9772042,15811496,25583539,41395035,66978574,108373609
%N A131132 See Maple code for recurrence.
%C A131132 Also: convolution of A000045 with the period-6 sequence (0,0,0,0,0,0,
               1,...). - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), May 30 2008
%D A131132 H. Matsui et al., Problem B-1035, Fibonacci Quarterly, Vol. 45, Number 
               2; 2007; p. 182.
%F A131132 O.g.f.: x/((1-x^6)(1-x-x^2)). - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), 
               May 30 2008
%p A131132 f:=proc(n) option remember; local t1; if n <= 2 then RETURN(1); fi: if 
               n mod 6 = 1 then t1:=1 else t1:=0; fi: f(n-1)+f(n-2)+t1; end; [seq(f(n), 
               n=1..100)]; - N. J. A. Sloane (njas(AT)research.att.com), May 25 
               2008
%Y A131132 Cf. A052952, A004695, A080239, A124502.
%Y A131132 Sequence in context: A034416 A056366 A000046 this_sequence A004692 A094926 
               A078843
%Y A131132 Adjacent sequences: A131129 A131130 A131131 this_sequence A131133 A131134 
               A131135
%K A131132 nonn
%O A131132 1,3
%A A131132 N. J. A. Sloane (njas(AT)research.att.com), May 25 2008
%E A131132 Typo in Maple code corrected by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), 
               May 30 2008