# A023047 (b-file synthesized from sequence entry)
0 1334961
1 16019531
2 206918942
3 2864826126
4 42351635064
5 666166856520
6 11113078385520
7 196038409800240
8 3646938237505920
9 71370457471716480
10 1465957162768492800
11 31537353006189676800
12 709233590351909145600
13 16643157932371543372800
14 406858911634713765427200