# A084703 (b-file synthesized from sequence entry)
0 0
1 4
2 144
3 4900
4 166464
5 5654884
6 192099600
7 6525731524
8 221682772224
9 7530688524100
10 255821727047184
11 8690408031080164
12 295218051329678400
13 10028723337177985444
14 340681375412721826704
15 11573138040695364122500