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)=9, k=1 and l=1.
A177125
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)=9, k=1 and l=1.
Terms
- a(0) =1a(1) =9a(2) =21a(3) =127a(4) =637a(5) =4007a(6) =24821a(7) =164659a(8) =1106197a(9) =7642295a(10) =53521277a(11) =380565539a(12) =2735155565a(13) =19854481655a(14) =145295269157
External references
- oeis: A177125