

A162874


Twin primes p and r such that p1, p+1 and r+1 are not cubefree.


3



69497, 69499, 416501, 416503, 474497, 474499, 632501, 632503, 960497, 960499, 1068497, 1068499, 1226501, 1226503, 1402871, 1402873, 1464101, 1464103, 1635497, 1635499, 1716497, 1716499, 1919429, 1919431, 1986497, 1986499
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OFFSET

1,1


COMMENTS

A variant of A162989, which is the main entry.  N. J. A. Sloane, Aug 12 2009


LINKS

Table of n, a(n) for n=1..26.


CROSSREFS

Cf. A089189, A089194, A162870, A162872, A162873
Sequence in context: A190379 A205758 A205588 * A162989 A052195 A089218
Adjacent sequences: A162871 A162872 A162873 * A162875 A162876 A162877


KEYWORD

nonn


AUTHOR

Vladimir Joseph Stephan Orlovsky, Jul 15 2009


EXTENSIONS

Terms corrected by Zak Seidov, Jul 19 2009
Edited by N. J. A. Sloane, Aug 12 2009


STATUS

approved



