# A177599 (b-file synthesized from sequence entry)
0 1
1 1
2 20
3 1680
4 347279
5 145417911
6 108103451700
7 130235191847880
8 237916352264650149
9 626620767478218488341
10 2286998940761680215812180
11 11203494211631147331264432480
12 71758642346800717617629677669619
13 587889139521679290927189491977855371