# A148488 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 6
4 21
5 73
6 272
7 1054
8 4214
9 17226
10 71623
11 302252
12 1292432
13 5581926
14 24319777
15 106774166
16 471860548
17 2097325988
18 9369510453
19 42044499840
20 189429350786
21 856534717875
22 3885495872594
23 17677575370337
24 80641091022357
25 368762780681781
26 1690078200540330
27 7761698620206097
28 35713157961834317