828495domain: NAppears in sequencesNumber of 6-elements orbits of S3 action on irreducible polynomials of degree n > 1 over GF(2).at n=25A165921Triangle read by rows: T(n,k) (n >= 1, 1 <= k <= n) = number of normalized 2n-plets associated to trees with k edges.at n=51A294439