A235857 - OEIS

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A235857 as a simple table

n	a(n)
0	1
1	2
2	12
3	1536
4	519045120
5	156130677884314787512320
6	12538151702000091464104493325082133822247601116646227522355200

[1,2,12,1536,519045120,156130677884314787512320, 12538151702000091464104493325082133822247601116646\ 227522355200]