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A055166 Number of Mersenne prime exponents between 10^n and 10^(n+1). 0
4, 6, 4, 8, 6, 5, 5 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,1
LINKS
EXAMPLE
There are 4 Mersenne prime exponents between 10^0 and 10^1; 6 between 10^1 and 10^2; ... . There are 9 known Mersenne primes between 10^7 and 10^8 so for now, the next entry is 9.
CROSSREFS
Cf. A000043.
Sequence in context: A245556 A256318 A018835 * A202243 A130762 A054002
KEYWORD
nonn,hard
AUTHOR
Marvin Ray Burns, Jun 18 2000; updated Jan 07 2006, Jan 15 2009
STATUS
approved

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Last modified March 29 01:36 EDT 2024. Contains 371264 sequences. (Running on oeis4.)