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 A160696 Largest k such that k^2 divides prime(n)+1. 5
 1, 2, 1, 2, 2, 1, 3, 2, 2, 1, 4, 1, 1, 2, 4, 3, 2, 1, 2, 6, 1, 4, 2, 3, 7, 1, 2, 6, 1, 1, 8, 2, 1, 2, 5, 2, 1, 2, 2, 1, 6, 1, 8, 1, 3, 10, 2, 4, 2, 1, 3, 4, 11, 6, 1, 2, 3, 4, 1, 1, 2, 7, 2, 2, 1, 1, 2, 13, 2, 5, 1, 6, 4, 1, 2, 8, 1, 1, 1, 1, 2, 1, 12, 1, 2, 2, 15, 1, 1, 4, 6, 4, 2, 2, 10, 6, 1, 3, 2, 1, 2, 3, 2 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS a(A049097(n)) = 1; a(A049098(n)) > 1; A160697 and A160698 give record values and where they occur; a(n) = A000188(A008864(n)). LINKS R. Zumkeller, Table of n, a(n) for n = 1..10000 CROSSREFS Sequence in context: A227899 A208244 A272171 * A152545 A256660 A109967 Adjacent sequences:  A160693 A160694 A160695 * A160697 A160698 A160699 KEYWORD nonn AUTHOR Reinhard Zumkeller, May 24 2009 STATUS approved

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Last modified January 18 13:30 EST 2020. Contains 331007 sequences. (Running on oeis4.)