# A125273 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 6
4 23
5 106
6 567
7 3434
8 23137
9 171174
10 1376525
11 11934581
12 110817423
13 1095896195
14 11487974708
15 127137087319
16 1480232557526
17 18075052037054
18 230855220112093
19 3076513227516437
20 42686898298650967
21 615457369662333260