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 A126956 Numbers n such that 3n+2, 4n+3 and 5n+4 are primes. 2
 5, 17, 77, 89, 119, 185, 257, 287, 395, 665, 755, 797, 929, 1175, 1259, 1337, 1379, 1445, 1469, 1769, 2057, 2105, 3125, 3419, 3437, 3629, 3815, 3989, 4079, 4157, 4175, 4217, 4367, 4445, 4847, 5045, 5375, 6089, 6137, 6167, 6359, 6419, 6485, 6725, 6887 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Harvey P. Dale, Table of n, a(n) for n = 1..1000 EXAMPLE Take n = 185. Then 3*185 + 2 = 557, 4*185 + 3 = 743 and 5*185 + 4 = 929 are primes. MATHEMATICA Select[Range[7000], PrimeQ[3# + 2] && PrimeQ[4# + 3] && PrimeQ[5# + 4] &] (* Ray Chandler, Mar 20 2007 *) Select[Range[7000], AllTrue[{3#+2, 4#+3, 5#+4}, PrimeQ]&] (* The program uses the AllTrue function from Mathematica version 10 *) (* Harvey P. Dale, Feb 06 2019 *) CROSSREFS Intersection of A024893, A095278, A024897. Cf. A126955. Sequence in context: A149735 A149736 A145959 * A149737 A149738 A149739 Adjacent sequences: A126953 A126954 A126955 * A126957 A126958 A126959 KEYWORD nonn AUTHOR J. M. Bergot, Mar 19 2007 EXTENSIONS Corrected and extended by Ray Chandler, Stuart Clary, Robert G. Wilson v and Zak Seidov, Mar 20 2007 STATUS approved

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Last modified May 29 11:30 EDT 2023. Contains 363031 sequences. (Running on oeis4.)