# A149362 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 12
4 44
5 160
6 630
7 2505
8 10274
9 42813
10 181411
11 778323
12 3376953
13 14792252
14 65335900
15 290694175
16 1301823805
17 5863740425
18 26550162371
19 120780915859
20 551812209781
21 2530915409480
22 11649789216869
23 53800623112057
24 249215824027266
25 1157671306509836
26 5391739956937891
27 25172642088618386