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A113459
Least number that begins an arithmetic progression of n numbers with the same prime signature.
2
1, 2, 3, 5, 5, 7, 7, 11, 11, 11, 11, 13
OFFSET
1,2
COMMENTS
Initial terms of arithmetic progressions described in A113460. - N. J. A. Sloane, Oct 18 2007
Conjecture: For n > 1, a(n) = A007918(n). - David Wasserman, Jan 08 2006
I disagree with that conjecture! Ignoring the initial terms, this will agree with A007918 up to some point and then (presumably) drop below A007918. The initial term in the arithmetic progression (of length n) must be >= n, but it is likely to be less than A007918(n) if n is large. - N. J. A. Sloane, Oct 18 2007
KEYWORD
hard,more,nonn
AUTHOR
David Wasserman, Jan 08 2006
EXTENSIONS
Edited by N. J. A. Sloane, Jul 01 2008 at the suggestion of R. J. Mathar.
STATUS
approved