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 A153214 Primes p such that p+-2 and p+-3 are not squarefree. 1
 47, 1447, 1847, 3701, 6653, 11273, 14947, 15727, 17053, 18493, 21661, 24923, 26647, 29153, 32789, 33023, 38873, 39323, 42437, 42923, 44053, 47527, 47977, 49853, 52027, 52153, 56747, 56873, 59929, 71147, 74189, 79427, 80953, 99277, 99713 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Table of n, a(n) for n=1..35. MATHEMATICA lst={}; Do[p=Prime[n]; If[ !SquareFreeQ[p-2]&&!SquareFreeQ[p+2]&&!SquareFreeQ[p-3]&&!SquareFreeQ[p+3], AppendTo[lst, p]], {n, 3*7!}]; lst Select[Prime[Range[10000]], NoneTrue[#+{-3, -2, 2, 3}, SquareFreeQ]&] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Aug 27 2019 *) CROSSREFS Cf. A049282, A049097, A039787, A075432, A153207, A153208, A153209, A153210, A153213 Sequence in context: A348805 A285237 A157359 * A142845 A202128 A278268 Adjacent sequences: A153211 A153212 A153213 * A153215 A153216 A153217 KEYWORD nonn AUTHOR Vladimir Joseph Stephan Orlovsky, Dec 20 2008 STATUS approved

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Last modified August 6 22:19 EDT 2024. Contains 374998 sequences. (Running on oeis4.)