# A146720 (b-file synthesized from sequence entry) 1 1 2 1 3 1 4 1 5 1 6 1 7 5 8 17 9 43 10 65 11 175 12 507 13 1901 14 7015 15 35249 16 143079 17 849399 18 4342589 19 31597665 20 199056275 21 1767268871