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A046761 as a simple table

n a(n)
0 1
1 9
2 1
3 407
4 9474
5 194979
6 548834
7 14459929
8 88593477
9 912985153
10 4679307774
11 94204591914
12 1
13 564240140138
14 28116440335967
15 1
16 4338281769391371
17 35875699062250035
18 1
19 4929273885928088826
20 63105425988599693916

[1,9,1,407,9474,194979,548834,14459929,88593477,
 912985153,4679307774,94204591914,1,564240140138,
 28116440335967,1,4338281769391371,
 35875699062250035,1,4929273885928088826,
 63105425988599693916]

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Last modified April 1 05:04 EDT 2020. Contains 333155 sequences. (Running on oeis4.)