# A147463 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 1
5 1
6 3
7 9
8 19
9 45
10 171
11 795
12 4151
13 23359
14 160489
15 1338097
16 13206661
17 152301919
18 2072243263
19 33494417573
20 640878789973
21 14468834259627
22 385605211468773
23 12154715457880649
24 453340950276092835