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 A179917 Primes with nine embedded primes. 2
 11317, 19739, 19973, 21317, 21379, 22397, 22937, 23117, 23173, 23371, 23971, 24373, 26317, 27197, 29173, 29537, 32719, 33739, 33797, 37397, 39719, 51137, 51973, 52313, 53173, 53479, 53719, 57173, 57193, 61379, 61979, 63179, 66173 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS A079066(a(n)) = 9. LINKS MATHEMATICA f[n_] := Block[ {id = IntegerDigits@n}, len = Length@ id - 1; Count[ PrimeQ@ Union[ FromDigits@# & /@ Flatten[ Table[ Partition[ id, k, 1], {k, len}], 1]], True] + 1]; Select[ Prime@ Range@ 6610, f@# == 10 &] PROG (Haskell) import Data.List (elemIndices) a179917 n = a179917_list !! (n-1) a179917_list = map (a000040 . (+ 1)) \$ elemIndices 9 a079066_list -- Reinhard Zumkeller, Jul 19 2011 CROSSREFS Cf. A039996, A079397, A033274, A034844, A092621, A179909 - A179919, A033274. Sequence in context: A178583 A178589 A266181 * A287245 A067791 A067779 Adjacent sequences:  A179914 A179915 A179916 * A179918 A179919 A179920 KEYWORD base,nonn AUTHOR Robert G. Wilson v, Aug 01 2010 STATUS approved

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Last modified May 22 14:32 EDT 2019. Contains 323480 sequences. (Running on oeis4.)