# A148491 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 6
4 21
5 79
6 308
7 1230
8 5122
9 21917
10 95429
11 420388
12 1874468
13 8451916
14 38469785
15 176364014
16 813412342
17 3772468146
18 17586034802
19 82346756679
20 387060294933
21 1825485662648
22 8636347518082
23 40975310094819
24 194907689107949
25 929256234842093
26 4439720262125077
27 21253098983214205
28 101922815438706386