31381059608
domain: N
Appears in sequences
- a(n) = 3^n - 1.at n=22A024023
- a(n) = 9^n-1.at n=11A024101
- Dirichlet convolution of mu(n) with 3^(n-1).at n=22A034741
- Maximal term in Collatz-iteration started at 3^n-1.at n=21A087971
- a(n) = 0^n + 3^n - 1.at n=22A103453
- a(n) = 3^n - (-1)^n.at n=22A105723
- a(n) = A000244(n) - A010684(n).at n=22A141317
- a(n) = n^11 - 1.at n=8A258812
- a(n) is the smallest number k > 1 such that k^n - 1 is divisible by 3^n.at n=21A316505
- a(n) is the smallest m such that A347191(m) = 2*n, where A347191(m) = tau(m^2 - 1).at n=22A347193