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Search: id:A028335
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| A028335 |
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Number of digits in n-th Mersenne prime.
(Formerly N0189)
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+0
3
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| 1, 1, 2, 3, 4, 6, 6, 10, 19, 27, 33, 39, 157, 183, 386, 664, 687, 969, 1281, 1332, 2917, 2993, 3376, 6002, 6533, 6987, 13395, 25962, 33265, 39751, 65050, 227832, 258716, 378632, 420921, 895932, 909526, 2098960, 4053946
(list; graph; listen)
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OFFSET
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1,3
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COMMENT
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Apply p->floor(p*log(2)/log(10))+1 to A000043.
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REFERENCES
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A. H. Beiler, Recreations in the Theory of Numbers, Dover, NY, 1964, p. 19.
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LINKS
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C. K. Caldwell, Mersenne Primes
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CROSSREFS
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See A000043, which is the main entry for this sequence. Cf. A000688.
Sequence in context: A034890 A009490 A064778 this_sequence A007464 A064764 A123131
Adjacent sequences: A028332 A028333 A028334 this_sequence A028336 A028337 A028338
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KEYWORD
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nonn,base
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AUTHOR
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njas
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EXTENSIONS
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More terms from Enoch Haga (Enokh(AT)comcast.net), Dec 18 2001
One more term from Harry J. Smith (hjsmithh(AT)sbcglobal.net), Apr 17 2003
4053946 from Omar E. Pol (info(AT)polprimos.com), Oct 28 2007
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