# A100937 (b-file synthesized from sequence entry)
0 1
1 3
2 14
3 76
4 435
5 2577
6 15678
7 97272
8 612126
9 3891890
10 24933292
11 160663328
12 1040074684
13 6759228932
14 44075916696
15 288289595968
16 1890894150707
17 12434303045721
18 81960791460442
19 541428229233012
20 3583843659376257