# A060042 (b-file synthesized from sequence entry)
0 1
1 2
2 30
3 420
4 5766
5 79356
6 1105868
7 15656200
8 225102726
9 3280346476
10 48334394756
11 718513364856
12 10756854024476
13 161965917024856
14 2450288410421976
15 37217243114489616
16 567231522298906566
17 8671114430550556236
18 132902927261011018836
19 2041798846285571043096