OFFSET
1,1
COMMENTS
There are 40 possible prime patterns for centuries having 1 prime. - Tim Johannes Ohrtmann, Aug 27 2015
LINKS
T. D. Noe, Table of n, a(n) for n = 1..1000
EXAMPLE
1559 is in this sequence because there is 1 prime between 155900 and 155999 (155921).
MATHEMATICA
Select[Range[31000], PrimePi[100 #+99]-PrimePi[100 #]==1&] (* Harvey P. Dale, Dec 16 2011 *)
PROG
(PARI) isA186393(n)=my(k=nextprime(100*n)); n=100*(n+1); k<n&nextprime(k+1)>n \\ Charles R Greathouse IV, Feb 21 2011
CROSSREFS
KEYWORD
nonn
AUTHOR
Tim Johannes Ohrtmann, Feb 20 2011
EXTENSIONS
a(4)-a(46) from Charles R Greathouse IV, Feb 21 2011
STATUS
approved