a(n) = 8*a(n-1) + 27*a(n-2), with a(0)=0, a(1)=1.
A190943
a(n) = 8*a(n-1) + 27*a(n-2), with a(0)=0, a(1)=1.
Terms
- a(0) =0a(1) =1a(2) =8a(3) =91a(4) =944a(5) =10009a(6) =105560a(7) =1114723a(8) =11767904a(9) =124240753a(10) =1311659432a(11) =13847775787a(12) =146197010960
External references
- oeis: A190943