

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
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OFFSET

1,1


LINKS

Table of n, a(n) for n=1..59.


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



