# A125381 (b-file synthesized from sequence entry)
0 1
1 18
2 168
3 1308
4 11788
5 108368
6 1019238
7 9713414
8 93465716
9 905458656
10 8814132218
11 86094716902
12 842995538722
13 8268296567458
14 81194927188214
15 798010003387898
16 7847743232008148
17 77207807539770572
18 759807537336050712