# A148730 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 7
4 25
5 73
6 285
7 955
8 3919
9 14305
10 60725
11 234803
12 1021695
13 4117745
14 18255063
15 75905883
16 341433697
17 1454584649
18 6619281441
19 28750556287
20 132079753073
21 582781728613
22 2698485000981
23 12062618604059
24 56226922073633
25 254100802569969
26 1191175614141125
27 5433263784163247
28 25595283861452437