a(n) = 9*2^n + 7*4^n + 3*8^n + 8*3^n + 2*9^n + 6*5^n + 5*6^n + 4*7^n + 10^n + 10.
A254148
a(n) = 9*2^n + 7*4^n + 3*8^n + 8*3^n + 2*9^n + 6*5^n + 5*6^n + 4*7^n + 10^n + 10.
Terms
- a(0) =55a(1) =220a(2) =1210a(3) =7942a(4) =57838a(5) =450670a(6) =3682030a(7) =31153342a(8) =270739678a(9) =2403012910a(10) =21693441550a(11) =198578979742
External references
- oeis: A254148