# A354538 (b-file synthesized from sequence entry)
0 1
1 3
2 8
3 17
4 44
5 125
6 368
7 1097
8 3284
9 9845
10 29528
11 88577
12 265724
13 797165
14 2391488
15 7174457
16 21523364
17 64570085
18 193710248
19 581130737
20 1743392204