# A148109 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 4
4 10
5 28
6 79
7 240
8 747
9 2442
10 8122
11 27655
12 95774
13 338586
14 1214670
15 4409121
16 16185295
17 60075271
18 225336394
19 852030177
20 3245779122
21 12454403176
22 48137170525
23 187203702504
24 731955128196
25 2876702581314
26 11364887602996
27 45115533013767
28 179849000456452
29 719753549785382
30 2891681302205292