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Primes which are the reverse concatenation of two consecutive Fibonacci numbers.
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%I #8 Sep 01 2024 18:57:43

%S 11,53,2113,14489,25841597,832040514229,

%T 45170904956503918714087129372791715456571051233611642553,

%U 5412222237103765877667657957123376148335120669380949733449372971981195681356806732944396691005381570580873

%N Primes which are the reverse concatenation of two consecutive Fibonacci numbers.

%e The second term is 53 which is a prime and is the reverse concatenation of 3 and 5 which are two consecutive Fibonacci numbers.

%t Select[#[[2]]*10^IntegerLength[#[[1]]]+#[[1]]&/@Partition[Fibonacci[Range[500]],2,1],PrimeQ] (* _Harvey P. Dale_, Sep 01 2024 *)

%Y Cf. A000045.

%K base,nonn

%O 1,1

%A _Shyam Sunder Gupta_, Apr 17 2005