27487764474
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=40A001037
- Inverse Euler transform of central binomial coefficients A000984.at n=20A131764