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A168387 as a simple table

n a(n)
2 8
3 1
4 0
5 16
6 4
7 19
8 22
9 31
10 24
11 42
12 142
13 239
14 1042
15 1239
16 2389
17 10389
18 310589
19 1310589
20 1000001310589
21 1000000000000000000000001000001310589
22 1000001000000000000000000000001000001310589

[8,1,0,16,4,19,22,31,24,42,142,239,1042,1239,2389,
 10389,310589,1310589,1000001310589,
 1000000000000000000000001000001310589,
 1000001000000000000000000000001000001310589]

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Last modified January 27 16:35 EST 2022. Contains 350609 sequences. (Running on oeis4.)