OFFSET
1,1
COMMENTS
Record prime base number of a sporadic palindromic square is 13661181333262459.
LINKS
Hans Havermann (via Feng Yuan), Table of n, a(n) for n = 1..61
P. De Geest, Palindromic Squares
G. L. Honaker, Jr. and C. Caldwell, Prime Curios!
W. R. Marshall, Palindromic Squares
F. Yuan, Palindromic Square Numbers
EXAMPLE
E.g. a(6) = 900075181570009 = p^2 with p = 30001253 and prime.
MATHEMATICA
t={}; Do[p=Prime[n]; If[FromDigits[Reverse[IntegerDigits[p^2]]]==p^2, AppendTo[t, p]], {n, 10^7}]; t (* Jayanta Basu, May 11 2013 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Patrick De Geest, Nov 03 2001
EXTENSIONS
Corrected by Jayanta Basu, May 11 2013
STATUS
approved