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)=7, k=0 and l=1.

A177128

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)=7, k=0 and l=1.

Terms

    a(0) =1a(1) =7a(2) =15a(3) =80a(4) =371a(5) =2088a(6) =11771a(7) =70305a(8) =427405a(9) =2663932a(10) =16853341a(11) =108166507a(12) =701904555a(13) =4599254190a(14) =30383303055a(15) =202154463130

External references