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A176823 as a simple table

n a(n)
1 0
2 1
3 8
4 17
5 399
6 73
7 44638
8 1570497
9 5077565
10 486784401
11 22187726197
12 166394893969
13 13800864889148
14 762517292682713
15 9603465430859099
16 803800832678655745
17 3180753925351614970
18 947615093635545799201

[0,1,8,17,399,73,44638,1570497,5077565,486784401,
 22187726197,166394893969,13800864889148,
 762517292682713,9603465430859099,
 803800832678655745,3180753925351614970,
 947615093635545799201]

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Last modified January 17 18:14 EST 2020. Contains 330987 sequences. (Running on oeis4.)