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A201628 as a simple table

n a(n)
0 1
1 1
2 4
3 31
4 360
5 5601
6 109568
7 2586151
8 71555200
9 2271961825
10 81441188352
11 3253620672303
12 143361363439616
13 6907049546879041
14 361245668908466176
15 20383791705206338807
16 1234336634416972726272
17 79843983527411321710401
18 5494767253686351671459840
19 400863405346004202504321343

[1,1,4,31,360,5601,109568,2586151,71555200,
 2271961825,81441188352,3253620672303,
 143361363439616,6907049546879041,
 361245668908466176,20383791705206338807,
 1234336634416972726272,79843983527411321710401,
 5494767253686351671459840,
 400863405346004202504321343]

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Last modified April 25 11:03 EDT 2024. Contains 371967 sequences. (Running on oeis4.)