20390552
domain: N
Appears in sequences
- Number of ternary Lyndon words whose digits sum to 0 mod 3; also number of trace 0 irreducible polynomials over GF(3).at n=18A046209
- Number of ternary Lyndon words whose digits sum to 1 (or 2) mod 3; number of trace 1 (or 2) monic irreducible polynomials over GF(3).at n=18A046211
- a(n) = floor(9^9/n).at n=18A057071
- Fermat quotient of the n-th prime with base 3.at n=5A146211