A115347 Fibonacci primes that are also primes when their digits are reversed.

2, 3, 5, 13, 1597

Offset: 1

Author

Harvey P. Dale, Mar 07 2006

Keywords

• nonn
• base

Comments

There are no other numbers that qualify through the 10000th Fibonacci number (which has 2,090 digits).

Examples

			13 is the 7th Fibonacci number. It is prime and its reversal, 31, is also prime.
		

Crossrefs

Cf. A000045.

Programs

Mathematica

Select[Fibonacci[Range[10000]], PrimeQ[ # ]&&PrimeQ[FromDigits[Reverse[IntegerDigits[ # ]]]]&]