# A051490 (b-file synthesized from sequence entry)
0 0
1 3
2 256
3 30375
4 5308416
5 1313046875
6 440301256704
7 193010051319183
8 107374182400000000
9 73994897046174912819
10 61917364224000000000000
11 61870237399093306018139447
12 72790360926157879387298463744
13 99617732553594016079725341796875