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A331690 as a simple table

n a(n)
0 1
1 1
2 4
3 33
4 456
5 9445
6 272448
7 10386817
8 503758720
9 30202999821
10 2189000524800
11 188349613075393
12 18954958449853440
13 2203304642871358741
14 292675996808408743936
15 44022321302156791898625
16 7438113993194856900034560
17 1401876939543892434209075581

[1,1,4,33,456,9445,272448,10386817,503758720,
 30202999821,2189000524800,188349613075393,
 18954958449853440,2203304642871358741,
 292675996808408743936,44022321302156791898625,
 7438113993194856900034560,
 1401876939543892434209075581]

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Last modified May 15 01:31 EDT 2024. Contains 372536 sequences. (Running on oeis4.)