# A029812 (b-file synthesized from sequence entry) 0 5 1 68 2 1028 3 4800 4 16388 5 42568 6 81600 7 144000 8 262148 9 440708 10 643528 11 878400 12 1310400 13 1942216 14 2448000 15 3004800 16 4194308 17 5679496 18 6662468 19 7819200 20 10258888 21 13056000 22 14932800 23 16790400