# A030282 (b-file synthesized from sequence entry) 1 2 2 7 3 23 4 75 5 242 6 772 7 2430 8 7529 9 22941 10 68801 11 203488 12 594994 13 1724242 14 4963041 15 14213111 16 40540661 17 115235882 18 326470662 19 921780312 20 2593408123 21 7269728291 22 20302519239 23 56493171410 24 156652350614 25 433009258768