# A106050 (b-file synthesized from sequence entry)
0 0
1 0
2 0
3 1
4 3
5 13
6 42
7 146
8 476
9 1574
10 5122
11 16706
12 54256
13 176254
14 571954
15 1856245
16 6023681
17 19551939
18 63476314
19 206145075
20 669695819
21 2176401235
22 7075521724
23 23011145314
24 74864599954
25 243652588070
26 793264765396
27 2583532274289
28 8416929889967
29 27430452311513