A173072 n-th prime minus n-th even number.

2, 1, 1, 1, 3, 3, 5, 5, 7, 11, 11, 15, 17, 17, 19, 23, 27, 27, 31, 33, 33, 37, 39, 43, 49, 51, 51, 53, 53, 55, 67, 69, 73, 73, 81, 81, 85, 89, 91, 95, 99, 99, 107, 107, 109, 109, 119, 129, 131, 131, 133, 137, 137, 145, 149, 153, 157, 157, 161, 163, 163, 171, 183, 185

Offset

1,1

Links

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

Formula

a(n)=A000040(n) - 2n + 2.

Mathematica

Table[Prime[n]-2(n-1), {n, 70}] (* Harvey P. Dale, Jul 04 2016 *)

Crossrefs

See A179437 for another version.

Sequence in context: A057001 A307689 A299037 * A219272 A084097 A306684

Adjacent sequences: A173069 A173070 A173071 * A173073 A173074 A173075

Keyword

nonn,easy

Author

Juri-Stepan Gerasimov, Feb 09 2010

Extensions

Edited by Charles R Greathouse IV, Mar 24 2010

Status

approved