# A148294 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 5
4 13
5 35
6 110
7 332
8 1074
9 3607
10 12120
11 41835
12 148879
13 525959
14 1904427
15 6995590
16 25659595
17 95591032
18 360036559
19 1353702230
20 5153002842
21 19759502031
22 75714017272
23 292822792645
24 1138947841638
25 4427470127513
26 17339998869034
27 68210151850507
28 268226913204807
29 1061159916625160
30 4213133936804945