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A233009
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Exponents p of the Mersenne primes 2^p - 1 (see A000043) read mod 23
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1
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2, 3, 5, 7, 13, 17, 19, 8, 15, 20, 15, 12, 15, 9, 14, 18, 4, 20, 21, 7, 6, 5, 12, 19, 12, 2, 15, 16, 11, 6, 6, 1, 15, 9, 7, 21, 5, 5, 3, 1, 19, 21, 22, 6, 6, 7, 6
(list;
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refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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LINKS
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FORMULA
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EXAMPLE
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For n=9, the 9th Mersenne prime index is A000043(9)= 61 and a(9)= 61 mod 23 = 15.
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MATHEMATICA
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CROSSREFS
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KEYWORD
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nonn,less
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AUTHOR
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EXTENSIONS
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a(46)-a(47) corrected and a(48) removed by Gord Palameta, Aug 06 2018
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STATUS
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approved
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