A257045 - OEIS

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A257045 as a simple table

n	a(n)
0	1
1	5
2	292
3	52020
4	9504288
5	29484180000
6	17168660000
7	801669704780000
8	35930841355360000
9	1250077234358967840000
10	36426677336311407264000
11	11464402743063221545440000
12	42860453128110714373355232000

[1,5,292,52020,9504288,29484180000,17168660000, 801669704780000,35930841355360000, 1250077234358967840000,36426677336311407264000, 11464402743063221545440000, 42860453128110714373355232000]