A067542 Primes p such that p+5==0 (mod phi(p+5)).

3, 7, 11, 13, 19, 31, 43, 59, 67, 103, 139, 157, 211, 251, 283, 379, 571, 643, 859, 967, 1019, 1291, 1453, 1531, 1723, 3067, 4091, 4603, 5179, 5827, 6907, 17491, 18427, 20731, 24571, 41467, 55291, 82939, 93307, 98299, 104971, 110587, 118093, 147451

Offset

1,1

Links

Harvey P. Dale, Table of n, a(n) for n = 1..75

Mathematica

Select[Prime[Range[14000]], Mod[#+5, EulerPhi[#+5]]==0&] (* Harvey P. Dale, Jan 14 2022 *)

Crossrefs

Sequence in context: A186645 A077256 A341864 * A346156 A129748 A310198

Adjacent sequences: A067539 A067540 A067541 * A067543 A067544 A067545

Keyword

easy,nonn

Author

Benoit Cloitre, Feb 22 2002

Status

approved