a(n) = (2^0)*(2^1)*(2^2)*(2^3)...(2^n)+1 = 2^T_n+1 (cf. A000217).
A126884
a(n) = (2^0)*(2^1)*(2^2)*(2^3)...(2^n)+1 = 2^T_n+1 (cf. A000217).
Terms
- a(0) =2a(1) =3a(2) =9a(3) =65a(4) =1025a(5) =32769a(6) =2097153a(7) =268435457a(8) =68719476737
External references
- oeis: A126884