# A024291 (b-file synthesized from sequence entry)
0 0
1 1
2 10
3 219
4 8340
5 486517
6 40126366
7 4429823055
8 629201874216
9 111601138953193
10 24147604588944178
11 6255175324250099907
12 1910034333745099017660
13 678640902986234659254877