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Search: id:A153144
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| A153144 |
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Numbers n such that 2n+19 is not a prime |
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+0
3
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| 1, 3, 4, 7, 8, 10, 13, 15, 16, 17, 18, 19, 22, 23, 25, 28, 29, 31, 33, 34, 36, 37, 38, 40, 43, 46, 48, 49, 50, 51, 52, 53, 55, 57, 58, 61, 62, 63, 64, 67, 68, 70, 71, 73, 75, 76, 78, 79, 82, 83, 84, 85, 88, 91, 92, 93, 94, 95, 97, 98, 99, 100, 101
(list; graph; listen)
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OFFSET
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1,2
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FORMULA
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Let p = prime number, n = (p^2-9)/2 mod (p)
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EXAMPLE
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-5; -2, 3; 1, 8, 15; 4, 13, 22, 31; 7, 18, 29, 40, 51; 10, 23, 36, 49, 62, 75;
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CROSSREFS
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Cf. A153143
Sequence in context: A091934 A024515 A138971 this_sequence A032788 A070874 A154708
Adjacent sequences: A153141 A153142 A153143 this_sequence A153145 A153146 A153147
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KEYWORD
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nonn
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AUTHOR
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Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Dec 19 2008
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