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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
OFFSET
1,1
COMMENTS
Eight consecutive odd numbers starting with p are squarefree.
This is the longest set as p+16 in all cases is divisible by 9.
All terms are congruent to 11 mod 18.
MATHEMATICA
Select[Prime[Range[600]], AllTrue[#+2*Range[7], SquareFreeQ]&] (* Harvey P. Dale, Oct 19 2022 *)
PROG
(Magma) [p: p in PrimesUpTo(4500) | forall{k: k in [1..7] | IsSquarefree(p+2*k)}]; // Vincenzo Librandi, Feb 09 2016
CROSSREFS
Sequence in context: A141930 A153680 A097722 * A156784 A142592 A343683
KEYWORD
nonn
AUTHOR
Zak Seidov, Feb 08 2016
STATUS
approved