OFFSET
1,1
COMMENTS
(1) These primes all with the end digits 2 and 7 are concatenations of two CUBIC numbers: "n^3 3^3".
(2) It is conjectured that sequence is infinite.
REFERENCES
Harold Davenport, Multiplicative Number Theory, Springer-Verlag New-York 1980
Leonard E. Dickson: History of the Theory of numbers, vol. I, Dover Publications 2005
Friedhelm Padberg, Elementare Zahlentheorie, Spektrum Akademischer Verlag, 2. Auflage 1991
MATHEMATICA
Select[100Range[140]^3+27, PrimeQ] (* Harvey P. Dale, Aug 22 2011 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Eva-Maria Zschorn (e-m.zschorn(AT)zaschendorf.km3.de), Nov 27 2009
EXTENSIONS
Edited by Charles R Greathouse IV, Apr 24 2010
STATUS
approved