# A335091 (b-file synthesized from sequence entry)
0 0
1 1
2 152
3 55511
4 41625144
5 56246975289
6 124697847089808
7 423322997436687375
8 2088114588247920714000
9 14363296872939657999716625
10 133299155158711610547152961000
11 1624450039177408057102079622846375
12 25413656551949715361011431877529125000
13 500711137690193661025654228810320074015625