# A032455 (b-file synthesized from sequence entry) 1 8 2 12 3 14 4 24 5 32 6 134 7 252 8 272 9 404 10 1460 11 1776 12 8510 13 14280 14 14396 15 17736 16 21284 17 84056 18 147036 19 490772 20 963590 21 1920152 22 2407958