# A147047 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 1
5 1
6 5
7 5
8 9
9 25
10 73
11 125
12 433
13 1109
14 4789
15 15605
16 79281
17 298381
18 1737861
19 8105277
20 59580321
21 339696501
22 2994804821
23 20458651317
24 215020666113
25 1796632825373
26 23034291528869
27 233369066240557
28 3603324644623713