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Search: id:A109071
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| A109071 |
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Numbers n such that the string n123123 is prime. |
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+0
3
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| 2, 8, 19, 31, 37, 64, 68, 71, 79, 85, 89, 94, 100, 109, 128, 136, 137, 148, 149, 157, 170, 178, 179, 181, 184, 190, 194, 211, 215, 233, 241, 250, 251, 269, 277, 284, 290, 293, 298, 304, 310, 313, 314, 316, 317, 326, 331, 353, 355, 367, 370, 376, 386, 394, 400
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Also numbers n such that 10^6*n+123123 is prime. - Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Mar 03 2006
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EXAMPLE
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If n=2 then n123123 = 2123123 (prime).
If n=94 then n123123 = 94123123 (prime).
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MATHEMATICA
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Select[Range[0, 500], PrimeQ[10^6*# + 123123] &] - Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Mar 03 2006
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CROSSREFS
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Sequence in context: A033711 A093012 A049525 this_sequence A031327 A030504 A000158
Adjacent sequences: A109068 A109069 A109070 this_sequence A109072 A109073 A109074
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KEYWORD
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nonn
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AUTHOR
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Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Aug 17 2005
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EXTENSIONS
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More terms from Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Mar 03 2006
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