a(n) = 7*a(n-1) + 56*a(n-2) for n>=3, a(0)=1, a(1)=7, a(2)=98.
A133679
a(n) = 7*a(n-1) + 56*a(n-2) for n>=3, a(0)=1, a(1)=7, a(2)=98.
Terms
- a(0) =1a(1) =7a(2) =98a(3) =1078a(4) =13034a(5) =151606a(6) =1791146a(7) =21027958a(8) =247499882a(9) =2910064822a(10) =34230447146a(11) =402576760054
External references
- oeis: A133679