# A009706 (b-file synthesized from sequence entry)
0 0
1 2
2 12
3 382
4 23352
5 2223002
6 318236292
7 63069898582
8 16506522005232
9 5516152886719922
10 2290713333669640572
11 1156963264109505327022
12 698325697094916345135912
13 496389417580098665436907082