# A129762 (b-file synthesized from sequence entry)
1 1
2 13
3 104
4 615
5 3149
6 14912
7 67537
8 297945
9 1293832
10 5564911
11 23795465
12 101383680
13 431003105
14 1829784725
15 7761645928
16 32906509335
17 139466630773
18 590979780544
19 2503927125041
20 10608105770625
21 44940061502216