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Denominators in approximations to the Aurifeuillian factors of p^p +- 1.
1

%I #21 Oct 11 2022 05:14:43

%S 3,45,2835,42525,1403325,273648375

%N Denominators in approximations to the Aurifeuillian factors of p^p +- 1.

%C a(1) = 3 = 4! / 2^3

%C a(2) = 3^2 * 5 = 6! / 2^4

%C a(3) = 3^4 * 5 * 7 = 8! / 2^7 * 3^2

%C a(4) = 3^5 * 5^2 * 7 = 10! / 2^8 * 3

%C a(5) = 3^6 * 5^2 * 7 * 11 = 12! / 2^10 * 3

%Y Cf. A356518 (numerators), A352711, A352732, A352400, A352401.

%K frac,nonn,more

%O 1,1

%A _Patrick A. Thomas_, Aug 10 2022