# A145616 (b-file synthesized from sequence entry)
1 1
2 3
3 5
4 70
5 315
6 3465
7 45045
8 36036
9 51051
10 4849845
11 1616615
12 223092870
13 557732175
14 5019589575
15 145568097675
16 36100888223400
17 410237366175
18 410237366175
19 15178782548475
20 30357565096950
21 622330084487475