# A148137 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 4
4 11
5 28
6 89
7 266
8 894
9 2887
10 10129
11 34934
12 126616
13 454347
14 1684358
15 6242626
16 23641108
17 89693829
18 345105492
19 1333739582
20 5208633463
21 20435993351
22 80769046108
23 320745663196
24 1281477639621
25 5142830155160
26 20736929789522
27 83949701741692
28 341269279316502
29 1392422909701118
30 5701204016762123