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 A179909 Primes with only one embedded prime. 15
 13, 17, 29, 31, 43, 47, 59, 67, 71, 79, 83, 97, 103, 107, 151, 163, 191, 199, 269, 281, 349, 421, 461, 463, 487, 509, 569, 607, 641, 661, 701, 709, 769, 787, 811, 821, 863, 877, 887, 907, 911, 919, 941, 1021, 1051, 1061, 1063, 1087, 1091, 1201, 1249, 1409 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS A079066(a(n)) = 1. LINKS Reinhard Zumkeller, Table of n, a(n) for n = 1..1000 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@ 230, f@# == 2 &] PROG (Haskell) import Data.List (elemIndices) a179909 n = a179909_list !! (n-1) a179909_list = map (a000040 . (+ 1)) \$ elemIndices 1 a079066_list -- Reinhard Zumkeller, Jul 19 2011 CROSSREFS Cf. A039996, A079397, A033274, A034844, A092621, A179909 - A179919, A033274. Sequence in context: A164074 A152426 A152427 * A220488 A092626 A156343 Adjacent sequences:  A179906 A179907 A179908 * A179910 A179911 A179912 KEYWORD base,nonn AUTHOR Robert G. Wilson v, Aug 01 2010 STATUS approved

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Last modified December 7 05:14 EST 2019. Contains 329839 sequences. (Running on oeis4.)