OFFSET
1,1
COMMENTS
There are no other numbers that qualify through the 10000th Fibonacci number (which has 2,090 digits).
EXAMPLE
13 is the 7th Fibonacci number. It is prime and its reversal, 31, is also prime.
MATHEMATICA
Select[Fibonacci[Range[10000]], PrimeQ[ # ]&&PrimeQ[FromDigits[Reverse[IntegerDigits[ # ]]]]&]
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Harvey P. Dale, Mar 07 2006
STATUS
approved