# A037777 (b-file synthesized from sequence entry)
1 3
2 28
3 252
4 2270
5 20433
6 183898
7 1655082
8 14895740
9 134061663
10 1206554968
11 10858994712
12 97730952410
13 879578571693
14 7916207145238
15 71245864307142
16 641212778764280
17 5770915008878523