The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A172367 Numbers n > 0 such that n+4 is a prime. 18
 1, 3, 7, 9, 13, 15, 19, 25, 27, 33, 37, 39, 43, 49, 55, 57, 63, 67, 69, 75, 79, 85, 93, 97, 99, 103, 105, 109, 123, 127, 133, 135, 145, 147, 153, 159, 163, 169, 175, 177, 187, 189, 193, 195, 207, 219, 223, 225, 229, 235, 237, 247, 253, 259, 265, 267, 273, 277, 279 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Sameen Ahmed Khan, Table of n, a(n) for n = 1..10000 Sameen Ahmed Khan, Primes in Geometric-Arithmetic Progression, arXiv:1203.2083v1 [math.NT], (Mar 09 2012). FORMULA a(n)=(n+2)th prime-4. EXAMPLE a(1)=5-4=1, a(2)=7-4=3. MATHEMATICA Table[Prime[n]-4, {n, 3, 53}] (* Charles R Greathouse IV, Mar 12 2012 *) PROG (PARI) a(n)=prime(n+2)-4 \\ Charles R Greathouse IV, Mar 12 2012 CROSSREFS Cf. A000040, A006093, A040976, A086801. Sequence in context: A111225 A032678 A073671 * A024901 A258011 A000959 Adjacent sequences:  A172364 A172365 A172366 * A172368 A172369 A172370 KEYWORD nonn,easy AUTHOR Juri-Stepan Gerasimov, Feb 01 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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified March 30 12:10 EDT 2020. Contains 333125 sequences. (Running on oeis4.)