# A051405 (b-file synthesized from sequence entry)
0 2
1 10
2 70
3 574
4 5002
5 44530
6 399310
7 3589414
8 32291602
9 290585050
10 2615147350
11 23535971854
12 211822683802
13 1906400965570
14 17157599124190
15 154418363419894
16 1389765184685602
17 12507886403890090
18 112570976860169830
19 1013138789417005534