OFFSET
1,1
COMMENTS
Or, primes whose reversals are composites ending in 1,3,7,9. - Lekraj Beedassy, Aug 02 2008
A subsequence of A143260. - Lekraj Beedassy, Aug 02 2008
EXAMPLE
a(1)=19 because its reverse is a nonprime, 91.
CROSSREFS
KEYWORD
easy,nonn,base
AUTHOR
Enoch Haga, Apr 18 2000
EXTENSIONS
Edited by N. J. A. Sloane, Aug 29 2008 at the suggestion of R. J. Mathar
STATUS
approved