# A150643 (b-file synthesized from sequence entry) 0 1 1 2 2 7 3 27 4 117 5 524 6 2426 7 11426 8 54567 9 262976 10 1276549 11 6229483 12 30526069 13 150072090 14 739706710 15 3653663305 16 18077660610 17 89571457084 18 444331922248 19 2206345069415 20 10964807311084 21 54530053703043 22 271352454159710 23 1351007442499864 24 6729414090351049 25 33532553606501833 26 167149180130979290