A356519 Denominators in approximations to the Aurifeuillian factors of p^p +- 1.

3, 45, 2835, 42525, 1403325, 273648375

Offset

1,1

Comments

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

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

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

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

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

Links

Table of n, a(n) for n=1..6.

Crossrefs

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

Sequence in context: A012833 A012747 A210933 * A027637 A228903 A198952

Adjacent sequences: A356516 A356517 A356518 * A356520 A356521 A356522

Keyword

frac,nonn,more

Author

Patrick A. Thomas, Aug 10 2022

Status

approved