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A366720
Largest prime factor of 12^n+1.
7
2, 13, 29, 19, 233, 19141, 20593, 13063, 260753, 1801, 85403261, 57154490053, 2227777, 222379, 13156924369, 35671, 1200913648289, 66900193189411, 122138321401, 905265296671, 67657441, 1885339, 68368660537, 49489630860836437, 592734049, 438472201
OFFSET
0,1
LINKS
FORMULA
a(n) = A006530(A178248(n)). - Paul F. Marrero Romero, Dec 07 2023
MATHEMATICA
Table[FactorInteger[12^n + 1][[-1, 1]], {n, 0, 20}]
KEYWORD
nonn
AUTHOR
Sean A. Irvine, Oct 17 2023
STATUS
approved