367913domain: NAppears in sequencesNumber of reversible strings with n-1 beads of 2 colors. 6 beads are black. Strings are not palindromic.at n=24A032093Number of n-element subsets of [n+6] having an even sum.at n=25A282082Number of ways to fill a matrix with the parts of a strict integer partition of n.at n=34A323301