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A097466
Number of primes in each interval of one hundred numbers starting at 10000000.
1
2, 6, 6, 6, 5, 4, 7, 10, 9, 6, 4, 2, 11, 5, 7, 7, 4, 7, 10, 3, 9, 7, 6, 4, 8, 8, 6, 5, 9, 4, 7, 6, 4, 5, 5, 8, 7, 9, 5, 4, 4, 4, 9, 8, 6, 6, 7, 2, 7, 5, 8, 5, 8, 8, 7, 5, 9, 5, 9, 7, 6, 7, 6, 6, 6, 4, 8, 6, 5, 5, 5, 7, 6, 6, 7, 6, 6, 5, 8, 4, 4, 5, 6, 6, 6, 8, 4, 5, 5, 5, 9, 8, 6, 8, 7, 3, 6, 6, 6, 6, 7, 6, 9, 8
OFFSET
1,1
COMMENTS
This violates the OEIS rule that sequences should not depend on the choice of a large arbitrary parameter. Included only because it is in Nagell. - N. J. A. Sloane
REFERENCES
Nagell, T. "Introduction to number theory", Chelsea Publishing Company, 1964, page 52.
LINKS
MAPLE
a:= n-> add(`if`(isprime(2*i+1), 1, 0), i=50*n+4999950..50*n+4999999):
seq (a(n), n=1..120); # Alois P. Heinz, Sep 07 2012
MATHEMATICA
f[n_] := PrimePi[10^7 + 100n] - PrimePi[10^7 + 100n - 100]; Table[ f[n], {n, 70}] (* Robert G. Wilson v, Aug 27 2004)
CROSSREFS
Sequence in context: A291793 A284121 A198102 * A259311 A141624 A134413
KEYWORD
nonn,easy
AUTHOR
Francesco Guerrieri (francesco.guerrieri(AT)roma1.infn.it), Aug 23 2004
EXTENSIONS
More terms from Robert G. Wilson v, Aug 27 2004
STATUS
approved