# A147253 (b-file synthesized from sequence entry) 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 11 10 17 11 41 12 57 13 231 14 453 15 1543 16 3457 17 18427 18 50015 19 289401 20 862907 21 5771143 22 20904685 23 158696163 24 662519097