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A177797 as a simple table

n a(n)
0 0
1 0
2 1
3 5
4 31
5 239
6 2233
7 24725
8 318631
9 4707359
10 78691633
11 1471482725
12 30469552111
13 692488851599
14 17141242421353
15 459033875802485
16 13221994489388791
17 407574126219013439
18 13386292717807416673
19 466636446695213384645
20 17205919477720642772671
21 669019022588385113932079
22 27357684052927560953626393

[0,0,1,5,31,239,2233,24725,318631,4707359,
 78691633,1471482725,30469552111,692488851599,
 17141242421353,459033875802485,13221994489388791,
 407574126219013439,13386292717807416673,
 466636446695213384645,17205919477720642772671,
 669019022588385113932079,
 27357684052927560953626393]

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Last modified August 2 21:30 EDT 2021. Contains 346429 sequences. (Running on oeis4.)