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A120936 Number of primes in the interval [n,n+log(n)]. 2
0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 2, 1, 1, 0, 1, 1, 2, 1, 1, 0, 1, 1, 1, 0, 0, 1, 1, 2, 2, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 1, 1, 2, 2, 2, 1, 1, 0, 1, 1, 1, 1, 2, 1, 2, 2, 2, 1, 1, 0, 1, 1, 1, 1, 2, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 2, 1, 2, 2, 2, 1, 2, 1, 2 (list; graph; refs; listen; history; internal format)
OFFSET

1,11

COMMENTS

Soundararajan states that, on average, there is one prime in the interval [n,n+log(n)] for any number n. See A120934 for the prime n that yield new records.

LINKS

T. D. Noe, Table of n, a(n) for n=1..5000

K. Soundararajan, The distribution of prime numbers

MATHEMATICA

Table[Length[Select[Range[n, n+Log[n]], PrimeQ]], {n, 150}]

CROSSREFS

Sequence in context: A100073 A075685 A037906 * A173432 A101675 A051764

Adjacent sequences:  A120933 A120934 A120935 * A120937 A120938 A120939

KEYWORD

nonn

AUTHOR

T. D. Noe (noe(AT)sspectra.com), Jul 21 2006

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Last modified February 15 21:56 EST 2012. Contains 205860 sequences.