73704domain: NAppears in sequencesNumber of n X 3 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 1 1 1 vertically.at n=12A207584Number of solutions to the n-queens puzzle in a n X n board that are not square root permutations of {n-1,...,2,1,0}.at n=12A383738