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 A166582 Primes containing the string 444. 13
 4441, 4447, 14447, 14449, 24443, 44417, 44449, 44453, 44483, 44491, 44497, 54443, 54449, 74441, 74449, 84443, 84449, 94441, 94447, 124447, 134443, 144407, 144409, 144413, 144427, 144439, 144451, 144461, 144479, 144481, 144497, 164443, 164447 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Vincenzo Librandi, Table of n, a(n) for n = 1..1000 MATHEMATICA p444Q[n_] :=  Module[{idn = IntegerDigits[n]}, MemberQ[Partition[idn, 3, 1], {4, 4, 4}]]; Select[Prime[Range[20000]], p444Q] (* Vincenzo Librandi Sep 14 2012 *) Select[Prime[Range[16000]], SequenceCount[IntegerDigits[#], {4, 4, 4}]>0&] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Mar 15 2018 *) CROSSREFS Cf. A166571 - A166573, A166579 - A166581. Sequence in context: A309487 A206016 A091739 * A043508 A114908 A102622 Adjacent sequences:  A166579 A166580 A166581 * A166583 A166584 A166585 KEYWORD nonn,base AUTHOR Vincenzo Librandi, Nov 01 2009 EXTENSIONS Corrected (144491 replaced by 144497) by R. J. Mathar, Nov 30 2009 STATUS approved

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Last modified September 23 03:40 EDT 2020. Contains 337291 sequences. (Running on oeis4.)