# A369237 (b-file synthesized from sequence entry) 1 1 2 1 3 2 4 6 5 10 6 15 7 30 8 69 9 137 10 243 11 451 12 853 13 1562 14 2912 15 5555 16 10459 17 19644 18 37039 19 69305 20 129346