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)=6, k=1 and l=1.
A177122
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)=6, k=1 and l=1.
Terms
- a(0) =1a(1) =6a(2) =15a(3) =70a(4) =325a(5) =1721a(6) =9449a(7) =54208a(8) =318943a(9) =1918427a(10) =11731931a(11) =72746099a(12) =456238871a(13) =2889149141a(14) =18447220199a(15) =118630723058a(16) =767675233277
External references
- oeis: A177122