# A146372 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 1
5 1
6 13
7 27
8 135
9 531
10 2573
11 17743
12 176473
13 1599401
14 23234641
15 323134671
16 6982586189
17 150620917453
18 4817580729223
19 154870862911911