

A104300


Primes which are the reverse concatenation of four consecutive fibonacci numbers.


3



9227465570288735245782178309, 102334155632459863908816924157817, 297121507318363119031134903170701408733, 5527939700884757341645462290670721114850779780501304969544928657
(list;
graph;
refs;
listen;
history;
text;
internal format)



OFFSET

1,1


COMMENTS

There are no further terms up through and including Fibonacci(3000) which produces a 2507 digit number.  Harvey P. Dale, Sep 25 2018


LINKS

Table of n, a(n) for n=1..4.


EXAMPLE

The first term is 9227465570288735245782178309 which is a prime and is the reverse concatenation of 2178309,3524578,5702887 and 9227465 which are four consecutive fibonacci numbers.


MATHEMATICA

Select[FromDigits[Flatten[IntegerDigits/@Reverse[#]]]&/@Partition[ Fibonacci[ Range[100]], 4, 1], PrimeQ] (* Harvey P. Dale, Sep 25 2018 *)


CROSSREFS

Sequence in context: A003853 A003846 A105301 * A095450 A217407 A280350
Adjacent sequences: A104297 A104298 A104299 * A104301 A104302 A104303


KEYWORD

base,nonn


AUTHOR

Shyam Sunder Gupta, Apr 17 2005


STATUS

approved



