59946domain: NAppears in sequencesNumbers k>11 such that x^k + x^11 + x^10 + x^9 + x^8 + x^7 + x^6 + x^5 + x^4 + x^3 + x^2 + x + 1 is irreducible over GF(2).at n=41A057488Number of directed Hamiltonian walks from NW to SW corners of a 6 X n grid.at n=7A333602