# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a127785 Showing 1-1 of 1 %I A127785 #3 Mar 30 2012 18:37:03 %S A127785 1,1,3,15,88,594,4404,35260,300918,2714187,25715364,254752536, %T A127785 2629587927,28202629918,313575278100,3607684547463,42880301468830, %U A127785 525812475574788,6643855672178904,86407881067891029,1155583581407910414 %N A127785 G.f. satisfies: A(x) = 1 + x*A(x+x^2)^3. %o A127785 (PARI) {a(n)=local(A=1+x+x*O(x^n));for(i=0,n,A=1+x*subst(A^3,x,x+x^2));polcoeff(A,n)} %Y A127785 Cf. A127782, A127783. %K A127785 nonn %O A127785 0,3 %A A127785 _Paul D. Hanna_, Jan 28 2007 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE