# A027456 (b-file synthesized from sequence entry)
3 575
4 865
5 39743
6 19153
7 3681784
8 18198125
9 325151875
10 226462663
11 218431158848
12 163390785768
13 275577122835000
14 216187828065000
15 172736941569984
16 1121674137386517
17 4534605234349771581
18 3776294388104363125
19 21799582086436073920000
20 18520810592837638076992