%I A137249
%S A137249 2,2,7,15,37,84,197,456,1062,2467,5737,13335
%N A137249 Transform of A033999 by the T_{0,1} transformation (see link).
%H A137249 Richard Choulet, <a href="http://www.apmep.asso.fr/spip.php?article2176">
               Curtz-like transformation</a>.
%F A137249 The o.g.f is the function f given by f(z)=a(0)+a(1)*z+...=((2-2*z+z^2+z^3)/
               ((1+z)*(1-3*z+2*z^2-z^3))). Recurrence formula : a(n+4)=2*a(n+3)+a(n+2)-a(n+1)+a(n)
%Y A137249 Cf. A136302, A136303, A136304, A136305.
%Y A137249 Sequence in context: A061274 A061575 A133602 this_sequence A051769 A049955 
               A156464
%Y A137249 Adjacent sequences: A137246 A137247 A137248 this_sequence A137250 A137251 
               A137252
%K A137249 easy,nonn
%O A137249 1,1
%A A137249 Richard Choulet (richardchoulet(AT)yahoo.fr), Apr 05 2008