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 A137870 Prime numbers, isolated from neighboring primes by >6. 3
 211, 293, 409, 479, 631, 691, 701, 709, 719, 787, 797, 839, 919, 929, 1163, 1171, 1201, 1249, 1259, 1381, 1399, 1409, 1471, 1511, 1523, 1531, 1637, 1709, 1733, 1801, 1811, 1823, 1831, 1847, 1889, 2039, 2053, 2099, 2153, 2161, 2179, 2221, 2251, 2459, 2503 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS The distance to the nearest prime has to exceed 6 and equality is not allowed. - Stefan Steinerberger, May 02 2008 LINKS Harvey P. Dale, Table of n, a(n) for n = 1..1000 EXAMPLE 211-199=12 and 223-211=12. 293-283=10 and 307-293=14. MATHEMATICA q=6; s=""; For[i=1, i<12^2, p=Prime[i]; a=0; For[j=2, j<=q, If[PrimeQ[p-j]||PrimeQ[p+j], a=1; Break[]]; j=j+2]; If[a==0, s=s<>ToString[p]<>", "]; i++ ]; Print[s] Prime[Select[Range[2, 1500], Prime[ # - 1] + 6 < Prime[ # ] < Prime[ # + 1] - 6 &]] (* Stefan Steinerberger, May 02 2008 *) Transpose[Select[Partition[Prime[Range[400]], 3, 1], Min[ Differences[ #]]>6&]] [[2]] (* Harvey P. Dale, Feb 17 2012 *) CROSSREFS Sequence in context: A096706 A001583 A308790 * A137871 A142582 A139651 Adjacent sequences:  A137867 A137868 A137869 * A137871 A137872 A137873 KEYWORD nonn AUTHOR Vladimir Joseph Stephan Orlovsky, Apr 29 2008 EXTENSIONS More terms from Stefan Steinerberger, May 02 2008 Description edited by Ray Chandler, May 02 2009 STATUS approved

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Last modified September 19 15:09 EDT 2020. Contains 337178 sequences. (Running on oeis4.)