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A096912
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Numbers n such that 111*10^n+1 is prime.
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1
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8, 16, 20, 62, 64, 76, 100, 142, 230, 670, 2230, 167644
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OFFSET
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1,1
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COMMENTS
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a(1) through a(11) have been proved to be prime with WinPFGW.
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LINKS
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PROG
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CROSSREFS
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KEYWORD
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more,nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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