# A146723 (b-file synthesized from sequence entry) 1 1 2 1 3 1 4 1 5 9 6 13 7 35 8 63 9 1723 10 4113 11 139447 12 424285 13 17547037 14 65696265 15 8305366965 16 39548747551 17 8986486324279 18 53849970214263 19 23104370746283843 20 173734005704827315