# A199330 (b-file synthesized from sequence entry)
0 0
1 1
2 484
3 1156
4 2116
5 4900
6 16900
7 30625
8 41209
9 765625
10 12027024
11 45346756
12 94303521
13 1188939361
14 2144430864
15 3475809936
16 6168531600
17 26159180644
18 211618400400
19 483560298225