a(n) = 4*a(n-1) + 39*a(n-2), with a(0)=0, a(1)=1.
A190441
a(n) = 4*a(n-1) + 39*a(n-2), with a(0)=0, a(1)=1.
Terms
- a(0) =0a(1) =1a(2) =4a(3) =55a(4) =376a(5) =3649a(6) =29260a(7) =259351a(8) =2178544a(9) =18828865a(10) =160278676a(11) =1375440439a(12) =11752630120a(13) =100652697601a(14) =860963365084
External references
- oeis: A190441