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.
A177197
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) =11a(3) =56a(4) =241a(5) =1271a(6) =6661a(7) =37006a(8) =208891a(9) =1208821a(10) =7097111a(11) =42266381a(12) =254457091a(13) =1546758771a(14) =9478386011a(15) =58495688356a(16) =363237501841
External references
- oeis: A177197