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 A161724 Primes p such that also p-24 and p+24 are primes. 3
 29, 37, 43, 47, 83, 103, 107, 113, 127, 173, 257, 293, 307, 373, 397, 433, 443, 463, 467, 523, 547, 593, 617, 677, 733, 797, 853, 863, 883, 887, 953, 1063, 1093, 1283, 1303, 1423, 1447, 1583, 1723, 1777, 1847, 1973, 2003, 2063, 2087, 2113, 2137, 2333, 2357 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Apart from the first term, values are 3 or 7 mod 10. - Charles R Greathouse IV, Oct 12 2009 Solutions of the equation (p-24)' + p' + (p+24)' = 3, where p' is the arithmetic derivative of p. [Paolo P. Lava, Nov 08 2012] LINKS Daniel Starodubtsev, Table of n, a(n) for n = 1..10000 EXAMPLE 29-24=5,29+24=53; ... MATHEMATICA q=6*4; lst={}; Do[p=Prime[n]; If[PrimeQ[p-q] && PrimeQ[p+q], AppendTo[lst, p]], {n, 5000}]; lst CROSSREFS Cf. A006489, A137796, A161723. Sequence in context: A166088 A295490 A172195 * A046502 A255204 A049746 Adjacent sequences:  A161721 A161722 A161723 * A161725 A161726 A161727 KEYWORD nonn,easy AUTHOR Vladimir Joseph Stephan Orlovsky, Jun 17 2009 EXTENSIONS Definition edited by Emeric Deutsch, Jun 28 2009 STATUS approved

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Last modified August 9 02:14 EDT 2020. Contains 336310 sequences. (Running on oeis4.)