# A155598 (b-file synthesized from sequence entry)
0 1
1 6
2 46
3 336
4 2386
5 16776
6 117586
7 823416
8 5764546
9 40353096
10 282474226
11 1977324696
12 13841283106
13 96889002216
14 678223056466
15 4747561477176
16 33232930504066
17 232630513856136
18 1628413597648306
19 11398895184848856