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Search: id:A111022
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| A111022 |
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Integers n such that 8*10^n+21 is prime. |
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+0
1
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| 2, 4, 10, 40, 55, 162, 264, 506, 870, 948, 1339, 3587
(list; graph; listen)
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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 = 4 is a member because: 8*10^4+21 = 8*10000+21 = 80000+21 = 80021, which is prime.
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CROSSREFS
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Cf. A049054, A088274, A088275, A095688, A107083, A108049, A108050, A108052, A108054, A110980.
Sequence in context: A081080 A109460 A108801 this_sequence A086852 A084737 A013549
Adjacent sequences: A111019 A111020 A111021 this_sequence A111023 A111024 A111025
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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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