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A001578 as a simple table

n a(n)
1 1
2 1
3 2
4 3
5 5
6 1
7 13
8 7
9 17
10 11
11 89
12 1
13 233
14 29
15 61
16 47
17 1597
18 19
19 37
20 41
21 421
22 199
23 28657
24 23
25 3001
26 521
27 53
28 281
29 514229
30 31
31 557
32 2207
33 19801
34 3571
35 141961
36 107
37 73
38 9349
39 135721
40 2161
41 2789
42 211
43 433494437
44 43
45 109441
46 139
47 2971215073
48 1103
49 97
50 101

[1,1,2,3,5,1,13,7,17,11,89,1,233,29,61,47,1597,19,
 37,41,421,199,28657,23,3001,521,53,281,514229,31,
 557,2207,19801,3571,141961,107,73,9349,135721,
 2161,2789,211,433494437,43,109441,139,2971215073,
 1103,97,101]

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Last modified April 25 04:42 EDT 2024. Contains 371964 sequences. (Running on oeis4.)