A177852 prime(n)-A177687(n).

0, 2, 2, 6, 7, 9, 7, 9, 18, 24, 30, 17, 21, 28, 41, 38, 53, 55, 32, 36, 38, 58, 48, 54, 62, 66, 82, 86, 88, 78, 126, 75, 81, 69, 79, 95, 101, 93, 111, 117, 123, 125, 183, 137, 127, 143, 155, 215, 171, 173, 177, 231, 185, 243, 221, 137, 143, 145, 151, 155, 157, 167, 181, 227

Offset: 1

Author

Juri-Stepan Gerasimov, May 14 2010

Keywords

• nonn
• base
• less

Formula

a(n)=A000040(n)-A177687(n).

Extensions

Keyword:base,less added, most values from a(49) on corrected by R. J. Mathar, May 18 2010