# A012328 (b-file synthesized from sequence entry)
0 1
1 2
2 12
3 160
4 5264
5 337408
6 33558976
7 4774458624
8 925641066752
9 234811196362752
10 75489493100030976
11 29994952555909038080
12 14434169598255866957824
13 8272551360591963469152256