Sequence defined by the recurrence formula a(n+1)=sum(a(p)*a(n-p)+k,p=0..n)+l for n>=1, with here a(0)=1, a(1)=4, k=0 and l=1.

A176607

Sequence defined by the recurrence formula a(n+1)=sum(a(p)*a(n-p)+k,p=0..n)+l for n>=1, with here a(0)=1, a(1)=4, k=0 and l=1.

Terms

    a(0) =1a(1) =4a(2) =9a(3) =35a(4) =143a(5) =648a(6) =3071a(7) =15126a(8) =76495a(9) =395086a(10) =2074699a(11) =11044027a(12) =59457897a(13) =323180520a(14) =1771081641a(15) =9774955015a(16) =54286011887a(17) =303138215322

External references