# A218484 (b-file synthesized from sequence entry)
1 1
2 4
3 1276900
4 7236100
5 9449476
6 69529779225
7 273137935876
8 275693254225
9 1011814692100
10 1590221881600
11 3007619594001
12 5382738725329
13 6343774129225
14 10830009646404
15 43037339281225
16 49597341481444
17 161977776248401
18 492275260674729
19 623724701219361