# A295258 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 28
4 304
5 4456
6 82144
7 1827568
8 47674624
9 1427337856
10 48248157184
11 1817752215808
12 75534405842944
13 3432099993158656
14 169290181445914624
15 9009094978010165248
16 514518446264601739264
17 31389459744670699257856
18 2037360033664565682110464
19 140182487701223036287909888