a(n) = 3*(n+3)^(n-1).
A362354
a(n) = 3*(n+3)^(n-1).
Terms
- a(0) =1a(1) =3a(2) =15a(3) =108a(4) =1029a(5) =12288a(6) =177147a(7) =3000000a(8) =58461513a(9) =1289945088a(10) =31813498119a(11) =867763964928
External references
- oeis: A362354
A362354
a(n) = 3*(n+3)^(n-1).