OFFSET
1,1
COMMENTS
More precise definition from Don Reble, Jul 29 2014. (Old definition was: Smallest composite odd number of first sequence of n consecutive composite odd numbers.)
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..70
EXAMPLE
9 is composite but 11 is not; 25 and 27 are composite but 29 is not; 91, 93, 95 are composite but 97 is not.
MATHEMATICA
imax=1000000; lst={}; q=1; Do[k=0; Do[If[PrimeQ[n], Break[], k++], {n, m, imax+200, 2}]; If[k==q, q++; AppendTo[lst, m]], {m, 5, imax, 2}]; lst
CROSSREFS
KEYWORD
nonn
AUTHOR
Vladimir Joseph Stephan Orlovsky, Apr 16 2011
EXTENSIONS
Definition revised by N. J. A. Sloane, Jul 29 2014 at the suggestion of Don Reble.
STATUS
approved