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A322771 as a simple table

n a(n)
0 1
1 3
2 18
3 172
4 2295
5 40043
6 875936
7 23308546
8 737478487
9 27252363585
10 1159335917625
11 56103737161197
12 3057787510932485
13 186102920689311261
14 12555513437042340449
15 932964243520888524391
16 75926403820972271325522
17 6733532223196893844825456
18 647846856775383975668238328
19 67349524752043243630964385000

[1,3,18,172,2295,40043,875936,23308546,737478487,
 27252363585,1159335917625,56103737161197,
 3057787510932485,186102920689311261,
 12555513437042340449,932964243520888524391,
 75926403820972271325522,6733532223196893844825456,
 647846856775383975668238328,
 67349524752043243630964385000]

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Last modified March 28 13:35 EDT 2024. Contains 371254 sequences. (Running on oeis4.)