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A087309 Least number that ends an arithmetic progression of n numbers with the same prime signature. 6
1, 3, 7, 23, 29, 157, 505, 1139, 1211, 2089, 5161, 5293, 6347, 10717, 14233, 28213, 31451, 72965, 119029, 121603, 124177, 611261, 632171, 2003171, 2012771 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Final terms of the arithmetic progressions described in A086786.
Main diagonal of A086786.
LINKS
FORMULA
a(n)=A087308(n)+(n-1)*A087310(n). - R. J. Mathar, Oct 19 2007
CROSSREFS
Sequence in context: A144593 A057191 A090548 * A127781 A271918 A165580
KEYWORD
more,nonn
AUTHOR
Amarnath Murthy, Sep 02 2003
EXTENSIONS
Edited and extended by David Wasserman, Jan 08 2006
Further edited by N. J. A. Sloane, Jun 30 2008 at the suggestion of R. J. Mathar.
STATUS
approved

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Last modified March 19 06:19 EDT 2024. Contains 370953 sequences. (Running on oeis4.)