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A090834 Primes p such that p, p+6, p+12, p+18 are consecutive primes and p=6*k+5 for some k. 9
251, 5381, 6311, 12641, 13451, 14741, 15791, 17471, 23321, 26171, 56081, 62201, 75521, 78791, 82781, 84431, 89381, 94421, 95261, 104711, 115751, 120551, 121001, 154061, 162251, 163841, 179801, 185051, 187361, 191021, 206021, 214451, 222311, 226631, 243521 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
EXAMPLE
251,257,263,269 are consecutive primes,257=251+6,263=251+12,269=251+18 and 251=6*41+5
MATHEMATICA
Transpose[Select[Partition[Prime[Range[30000]], 4, 1], Differences[#]=={6, 6, 6}&&IntegerQ[(#[[1]]-5)/6]&]][[1]] (* Harvey P. Dale, Dec 12 2015 *)
CROSSREFS
Sequence in context: A340636 A234929 A218639 * A078968 A365468 A052239
KEYWORD
easy,nonn
AUTHOR
Pierre CAMI, Dec 09 2003
EXTENSIONS
More terms from Harvey P. Dale, Dec 12 2015
STATUS
approved

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Last modified May 20 14:08 EDT 2024. Contains 372717 sequences. (Running on oeis4.)