387158345
domain: N
Appears in sequences
- a(n) = 3^n - 2^n.at n=18A001047
- Nexus numbers (n+1)^18 - n^18.at n=2A022534
- a(n) = 9^n - 4^n.at n=9A118004
- Number of second differences of arrays of length n + 2 of numbers in 0..2.at n=15A228212
- Number of third differences of arrays of length n+3 of numbers in 0..2.at n=14A228254
- Number of achiral color patterns (set partitions) for a row or loop of length n using exactly 3 colors (sets).at n=37A304973
- Dirichlet convolution of A133494 [3^(n-1)] with A349452 (Dirichlet inverse of A011782, 2^(n-1)).at n=18A349567