187579domain: NAppears in sequencesNumber of ternary rooted trees with n nodes and height exactly 8.at n=18A036423Number of (n+2) X (5+2) 0..3 arrays with every 3 X 3 subblock row and diagonal sum equal to 0 3 5 6 or 7 and every 3 X 3 column and antidiagonal sum not equal to 0 3 5 6 or 7.at n=21A252381