# A035866 (b-file synthesized from sequence entry)
0 1
1 1640
2 673220
3 123273880
4 12774087510
5 854286594072
6 40098332182820
7 1400550765961960
8 38011151426301640
9 828828255977397080
10 14911158035799862332
11 226193352868905599400
12 2945866488164585776650