# A147456 (b-file synthesized from sequence entry) 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 3 11 6 12 11 13 18 14 27 15 52 16 137 17 404 18 1237 19 3559 20 10401 21 31124 22 115055 23 457260 24 2084424 25 9632056