A254163 - OEIS

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A254163 as a simple table

n	a(n)
1	16240
2	164408
3	1553720
4	13514192
5	119471400
6	1054310240
7	9378850720
8	83642043104
9	747838723984
10	6692350328688
11	59911130123536
12	536370198043600
13	4802059524173712
14	42992172686208464
15	384902922582518096

[16240,164408,1553720,13514192,119471400, 1054310240,9378850720,83642043104,747838723984, 6692350328688,59911130123536,536370198043600, 4802059524173712,42992172686208464, 384902922582518096]