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.
LINKS
Zak Seidov, Table of n, a(n) for n = 1..1592
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
KEYWORD
nonn
AUTHOR
Zak Seidov, Feb 08 2016
STATUS
approved