# A140189 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 3 4 7 5 9 6 16 7 22 8 42 9 57 10 90 11 124 12 204 13 275 14 413 15 562 16 866 17 1161 18 1685 19 2264 20 3308 21 4407