1908866960
domain: N
Appears in sequences
- Number of degree-n irreducible polynomials over GF(2); number of n-bead necklaces with beads of 2 colors when turning over is not allowed and with primitive period n; number of binary Lyndon words of length n.at n=36A001037
- a(n) = (1/n) * Sum_{ d divides n } mu(n/d) * (2^d - 1).at n=35A059966
- Number of orbits of length n in map whose periodic points are A000051.at n=35A060477
- Inverse Euler transform of central binomial coefficients A000984.at n=18A131764