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A319612 as a simple table

n a(n)
0 1
1 0
2 1
3 1
4 7
5 13
6 171
7 931
8 45935
9 1084413
10 155862511
11 10382960971
12 6939278572095
13 2203360500122299
14 4186526756621772343
15 3747344008241368443819
16 35041787059691023579970847
17 156277111373303386104606663421
18 4142122641757598618318165240180095

[1,0,1,1,7,13,171,931,45935,1084413,155862511,
 10382960971,6939278572095,2203360500122299,
 4186526756621772343,3747344008241368443819,
 35041787059691023579970847,
 156277111373303386104606663421,
 4142122641757598618318165240180095]

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Last modified May 7 19:42 EDT 2024. Contains 372313 sequences. (Running on oeis4.)