

A261408


Numbers k such that A260864(k) is a prime or probable prime, where A260864(k) is the number whose base14 representation is the concatenation of the base14 representations of (1, ..., k, k1, ..., 1).


2




OFFSET

1,1


COMMENTS



REFERENCES

David Broadhurst, email to N. J. A. Sloane, Aug 23 2015


LINKS



CROSSREFS



KEYWORD

nonn,more


AUTHOR



EXTENSIONS



STATUS

approved



