# A028152 (b-file synthesized from sequence entry)
0 1
1 32
2 655
3 10950
4 163161
5 2259732
6 29775715
7 378619250
8 4689039421
9 56915519232
10 680089278375
11 8025775900350
12 93763747253281
13 1086429328159532
14 12502585856078635
15 143058153091970250
16 1629014308540764741
17 18473446420865476632
18 208754600438793376495