A116034 Numbers k such that phi(k) + prime(k) is a prime.

1, 3, 7, 8, 9, 11, 12, 13, 16, 18, 20, 22, 24, 26, 29, 31, 33, 35, 36, 37, 38, 39, 42, 43, 47, 48, 49, 52, 53, 54, 66, 67, 70, 72, 73, 74, 75, 76, 77, 78, 79, 82, 84, 85, 90, 92, 93, 95, 98, 101, 104, 105, 110, 112, 115, 120, 122, 123, 124, 129, 133, 134, 140, 145

Offset

1,2

Links

Table of n, a(n) for n=1..64.

Example

phi(145) + prime(145) = 941 (a prime).

Crossrefs

Cf. A116033.

Sequence in context: A328980 A059101 A091679 * A364166 A122987 A047530

Adjacent sequences: A116031 A116032 A116033 * A116035 A116036 A116037

Keyword

nonn

Author

Giovanni Resta, Feb 13 2006

Status

approved