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A162874 Twin primes p and r such that p-1, 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 (list; graph; refs; listen; history; text; internal format)
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

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Last modified September 18 04:44 EDT 2020. Contains 337165 sequences. (Running on oeis4.)