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Search: id:A111021
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| A111021 |
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Integers n such that 7*10^n+31 is a prime number. |
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1
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OFFSET
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1,1
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COMMENT
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Some of the larger entries may only correspond to probable primes.
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EXAMPLE
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n = 11 is a member because: 7*10^11+31 = 7*100000000000+31 = 700000000000+31 = 700000000031, which is a prime
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CROSSREFS
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Cf. A049054, A088274, A088275, A095688, A107083, A108049, A108050, A108052, A108054, A110980.
Adjacent sequences: A111018 A111019 A111020 this_sequence A111022 A111023 A111024
Sequence in context: A006072 A074042 A140478 this_sequence A126814 A037449 A070477
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KEYWORD
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nonn
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AUTHOR
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Julien Peter Benney (jpbenney(AT)ftml.net), Oct 04 2005
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