Fibonacci Pseudoprime
Consider a Lucas Sequence with 
and 
. A Fibonacci pseudoprime is a Composite Number 
such that
There exist no Even Fibonacci pseudoprimes with parameters
and 
(Di Porto 1993) or 
(André-Jeannin 1996). André-Jeannin (1996) also proved that if 
and 
, thenthere exists at least one Even Fibonacci pseudoprime with parameters 
and 
.See also Pseudoprime
References
André-Jeannin, R. ``On the Existence of Even Fibonacci Pseudoprimes with Parameters Di Porto, A. ``Nonexistence of Even Fibonacci Pseudoprimes of the First Kind.'' Fib. Quart. 31, 173-177, 1993. Ribenboim, P. ``Fibonacci Pseudoprimes.'' §2.X.A in The New Book of Prime Number Records, 3rd ed. New York: Springer-Verlag, pp. 127-129, 1996. and .'' Fib. Quart. 34, 75-78, 1996.
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- Truncate
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