# A193234 (b-file synthesized from sequence entry)
0 1
1 2
2 6
3 20
4 66
5 228
6 804
7 2872
8 10374
9 37780
10 138436
11 509832
12 1885396
13 6996472
14 26039592
15 97160592
16 363332534
17 1361320284
18 5109306148
19 19205627608
20 72292274076
21 272454449560
22 1027979651384
23 3882579544656
24 14677889406396
25 55536827825096