# A372013 (b-file synthesized from sequence entry)
0 1
1 -1
2 4
3 -1
4 46
5 149
6 1351
7 8441
8 63499
9 462752
10 3514807
11 26923478
12 209566927
13 1647633779
14 13079663527
15 104649229988
16 843120766711
17 6833665175513
18 55683581174641
19 455878084448132
20 3748025535972448
21 30931714278955736
22 256150668109462507