|
|
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
|
|
|
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
|
|
|
KEYWORD
|
base,nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|