A272238 - OEIS

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A272238 as a simple table

n	a(n)
0	1
1	2
2	2073600
3	25177856146146034974720000000
4	14100949826093501607549529280892932893801777581548587107609477120000000000000000

[1,2,2073600,25177856146146034974720000000, 14100949826093501607549529280892932893801777581548\ 587107609477120000000000000000]