# A199014 (b-file synthesized from sequence entry) 1 1 2 2 3 3 4 4 5 6 6 9 7 12 8 18 9 27 10 36 11 54 12 108 13 1823 14 3646 15 5469 16 7292 17 10938 18 16407 19 21876 20 32814 21 49221 22 65628 23 98442 24 196884