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 A105146 Numbers k such that the string k100001 is prime. 0
 2, 6, 17, 23, 26, 38, 39, 42, 59, 63, 83, 89, 96, 102, 107, 117, 135, 144, 146, 153, 159, 174, 179, 182, 185, 189, 191, 192, 194, 201, 206, 230, 233, 237, 240, 245, 248, 249, 251, 252, 270, 279, 285, 287, 293, 299, 300, 318, 321, 329, 335, 339, 345, 350, 354, 356, 378, 387, 392 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS EXAMPLE k=2 is in the sequence because k100001 = 2100001 is prime. k=96 is in the sequence because k100001 = 96100001 is prime. PROG (MAGMA) [ n: n in [1..400] | IsPrime(Seqint([1, 0, 0, 0, 0, 1] cat Intseq(n))) ]; // Vincenzo Librandi, Feb 03 2011 CROSSREFS Cf. A105106, A105107. Sequence in context: A057497 A063627 A069014 * A076660 A024310 A064516 Adjacent sequences:  A105143 A105144 A105145 * A105147 A105148 A105149 KEYWORD base,nonn AUTHOR Parthasarathy Nambi, Apr 09 2005 STATUS approved

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Last modified September 21 15:37 EDT 2021. Contains 347598 sequences. (Running on oeis4.)