# A075114 (b-file synthesized from sequence entry)
1 4
2 121
3 144
4 4900
5 166464
6 5654884
7 192099600
8 6525731524
9 221682772224
10 7530688524100
11 255821727047184
12 8690408031080164
13 295218051329678400
14 10028723337177985444
15 340681375412721826704