A224098 - OEIS

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A224098 as a simple table

n	a(n)
0	1
1	16
2	1296
3	6912
4	6480000
5	2592000
6	6223392000
7	14224896000
8	1440270720000
9	320060160000
10	2811600481536000
11	511200087552000
12	255506749760021760000
13	291175783202304000
14	16846598885276160000

[1,16,1296,6912,6480000,2592000,6223392000, 14224896000,1440270720000,320060160000, 2811600481536000,511200087552000, 255506749760021760000,291175783202304000, 16846598885276160000]