# A024607 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 3
5 6
6 19
7 59
8 267
9 1380
10 9832
11 90842
12 1144061
13 19425052
14 445781050
15 13743625184
16 566756900370
17 31125101479652