The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A176236 Numbers n such that one of nonnegative nonprime(n)-2 or nonnegative nonprime(n)+2 is prime. 0
 1, 2, 3, 17, 19, 23, 25, 35, 37, 40, 42, 46, 48, 55, 57, 63, 65, 68, 72, 86, 96, 102, 104, 108, 114, 118, 120, 123, 125, 131, 133, 136, 138, 142, 148, 156, 164, 167, 175, 185, 187, 191, 197, 200, 202, 205, 207, 210, 212, 216, 218, 225, 231, 234, 244, 254, 264 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Exactly one of A141468(n)-2 and A141468(n)+2 is prime. LINKS Table of n, a(n) for n=1..57. EXAMPLE a(1)=1 because nonnegative nonprime(1)-2=-2=negative nonprime and nonnegative nonprime(1)+2=2=prime. CROSSREFS Sequence in context: A078201 A361104 A090913 * A171139 A291281 A135931 Adjacent sequences: A176233 A176234 A176235 * A176237 A176238 A176239 KEYWORD nonn AUTHOR Juri-Stepan Gerasimov, Apr 12 2010 EXTENSIONS More terms from R. J. Mathar, Apr 16 2010 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified May 23 18:13 EDT 2024. Contains 372765 sequences. (Running on oeis4.)