# A163735 (b-file synthesized from sequence entry) 1 1 2 2 3 9 4 13 5 29 6 87 7 299 8 917 9 2589 10 7059 11 19075 12 51111 13 135445 14 355377 15 925723 16 2398807 17 6190289 18 15920685 19 40835851 20 104520403 21 267077847