# A149177 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 10
4 35
5 124
6 430
7 1647
8 6183
9 23789
10 93982
11 369633
12 1481709
13 5983590
14 24232012
15 99222087
16 407426130
17 1680897964
18 6975369570
19 29010771057
20 121164653294
21 507700418550
22 2132120381475
23 8982067396981
24 37920761022042
25 160429930215705
26 680251829388493
27 2889238380694213
28 12293506617026379