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A220941 as a simple table

n a(n)
1 4
2 2056
3 291080
4 43253705
5 6388528170
6 944223520057
7 139549646254609
8 20624731224928936
9 3048237966941788465
10 450515041275014945368
11 66583978433834919848004
12 9840795003881912664407189

[4,2056,291080,43253705,6388528170,944223520057,
 139549646254609,20624731224928936,
 3048237966941788465,450515041275014945368,
 66583978433834919848004,9840795003881912664407189]

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Last modified February 6 11:28 EST 2023. Contains 360104 sequences. (Running on oeis4.)