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 A268612 Primes p such that p + 2 k, for k = 1..7 are squarefree. 1
 29, 83, 101, 191, 227, 389, 443, 479, 587, 641, 659, 677, 983, 1091, 1109, 1289, 1307, 1451, 1487, 2027, 2081, 2153, 2243, 2333, 2351, 2441, 2459, 2477, 2549, 2657, 2729, 2837, 2909, 2927, 2999, 3089, 3251, 3359, 3449, 3557, 3593, 4007 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Eight consecutive odd numbers starting with p are squarefree. This is the longest set as p+16 in all cases are divisible by 9. All terms are congruent to 11 mod 18. LINKS Zak Seidov, Table of n, a(n) for n = 1..1592 PROG (MAGMA) [p: p in PrimesUpTo(4500) | forall{k: k in [1..7] | IsSquarefree(p+2*k)}]; // Vincenzo Librandi, Feb 09 2016 CROSSREFS Cf. A049097, A049233. Sequence in context: A141930 A153680 A097722 * A156784 A142592 A255187 Adjacent sequences:  A268609 A268610 A268611 * A268613 A268614 A268615 KEYWORD nonn AUTHOR Zak Seidov, Feb 08 2016 STATUS approved

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Last modified October 19 14:21 EDT 2018. Contains 316362 sequences. (Running on oeis4.)