A083191 - OEIS

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A083191 as a simple table

n	a(n)
1	1
2	25
3	537
4	371113
5	711131723
6	111317231929
7	13172319293137
8	1723192931374143
9	231929313741434753
10	19293137414347535961
11	2931374143475359616771
12	313741434753596167717379
13	37414347535961677173798389

[1,25,537,371113,711131723,111317231929, 13172319293137,1723192931374143, 231929313741434753,19293137414347535961, 2931374143475359616771,313741434753596167717379, 37414347535961677173798389]