# A300489 (b-file synthesized from sequence entry)
0 0
1 1
2 5
3 65
4 1766
5 83674
6 6124584
7 639826452
8 90328291248
9 16558780949136
10 3823322392154880
11 1085461798576638240
12 371610484248792556800
13 150961314165968542273920
14 71790302154674639506682880
15 39506878580692178250399571200
16 24909116615180033772524150937600