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A070858 as a simple table

n a(n)
1 2
2 3
3 7
4 13
5 61
6 61
7 421
8 2521
9 2521
10 2521
11 55441
12 55441
13 4324321
14 4324321
15 4324321
16 4324321
17 85765681
18 85765681
19 232792561
20 232792561
21 232792561
22 232792561
23 10708457761
24 10708457761
25 26771144401
26 26771144401
27 401567166001

[2,3,7,13,61,61,421,2521,2521,2521,55441,55441,
 4324321,4324321,4324321,4324321,85765681,85765681,
 232792561,232792561,232792561,232792561,
 10708457761,10708457761,26771144401,26771144401,
 401567166001]

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Last modified July 23 15:58 EDT 2019. Contains 325258 sequences. (Running on oeis4.)