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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

Harvey P. Dale, Table of n, a(n) for n = 1..1000

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

Cf. A033451, A090832, A090833, A090835, A090836, A090837, A090838, A090839.

Sequence in context: A340636 A234929 A218639 * A078968 A052239 A089236

Adjacent sequences:  A090831 A090832 A090833 * A090835 A090836 A090837

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 April 11 11:17 EDT 2021. Contains 342886 sequences. (Running on oeis4.)