Search: id:A159349
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%I A159349
%S A159349 1,1,1,4,11,24,56,129,300,698,1623,3773,8771,20390,47401,110194,256170,
%T A159349 595523,1384423,3218393,7481856,17393205,40434296,93998334,218519615,
%U A159349 507996473,1180948523,2745372238,6382216141,14836852470,34491497366
%N A159349 Transform of the finite sequence (1, 0, -1, 0, 1, 0, -1) by the T_{0,
               0} transformation (see link)
%H A159349 Richard Choulet : <a href="http://www.apmep.asso.fr/IMG/pdf/curtz1.pdf">
               Curtz-like transformation </a>
%F A159349 O.g.f f(z)=((1-z)^2/(1-3*z+2*z^2-z^3))*(1-z^2+z^4-z^6). a(0)=1, a(1)=1, 
               a(2)=1, a(3)=4, a(4)=11, a(5)=24, a(6)=56, a(7)=129, a(8)=300 and 
               for n>=6 a(n+3)=3*a(n+2)-2*a(n+1)+a(n).
%p A159349 a(0):=1: a(1):=1:a(2):=1: a(3):=4:a(4):=11:a(5):=24:a(6):=56:a(7):=129:a(8):=300:for 
               n from 6 to 31 do a(n+3):=3*a(n+2)-2*a(n+1)+a(n):od:seq(a(i),i=0..31);
%Y A159349 A137531, A159347, A159348
%Y A159349 Sequence in context: A007678 A159350 A159348 this_sequence A115294 A110610 
               A051462
%Y A159349 Adjacent sequences: A159346 A159347 A159348 this_sequence A159350 A159351 
               A159352
%K A159349 easy,nonn
%O A159349 0,4
%A A159349 Richard Choulet (richardchoulet(AT)yahoo.fr), Apr 11 2009

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