A367020 Largest prime factor of A000058(n) = A007018(n) + 1 (Sylvester's sequence).

2, 3, 7, 43, 139, 3263443, 31051, 6212157481, 77366930214021991992277, 35874380272246624152764569191134894955972560447869169859142453622851

Offset

0,1

Links

Amiram Eldar, Table of n, a(n) for n = 0..10

Filip Saidak, A new proof of Euclid's theorem, Amer. Math. Monthly, 113:10 (2006) 937-938.

Wikipedia, Sylvester's sequence: Divisibility and factorizations.

Formula

a(n) = A006530(A000058(n)).

Crossrefs

Cf. A000058, A007018, A006530, A091335, A323605.

Sequence in context: A241166 A083369 A000946 * A091771 A339806 A072714

Adjacent sequences: A367017 A367018 A367019 * A367021 A367022 A367023

Keyword

nonn

Author

Sean A. Irvine, Nov 01 2023

Status

approved