# A337528 (b-file synthesized from sequence entry)
0 1
1 3
2 19
3 513
4 64447
5 33221793
6 68416620319
7 561987558307353
8 18435485678295497887
9 2417353606284586529475393
10 1267565977842177795997995695599
11 2658400215575093543617417352025297273
12 22300601642487504748989853483652483024500687