Additional
Information: Composite numbers which 'pass' probabilistic primality tests. Carmichael numbers also fall under this heading.
Pseudoprimes Sites:
Fun with Carmichael Numbers Fun with Carmichael Numbers: Honours thesis of Michael J. Dancs. (Pseudoprimes) http://www.math.psu.edu/dancs/carmichael.html
Richard Pinch - Mathematics Research Richard Pinch - Mathematics Research: Publications, including Carmichael numbers and pseudoprimes. (Pseudoprimes) http://www.chalcedon.demon.co.uk/rcam.html
Carmichael Numbers and the Miller-Rabin Test Carmichael Numbers and the Miller-Rabin Test: A worksheet from Professor Alexandre Borovik containing practical examples where Fermat probable primality fails to identify composites, yet strong probable primality can resolve. (Pseudoprimes) http://www.ma.umist.ac.uk/avb/117ws9.html
Carmichael Number Carmichael Number: Article in Eric Weisstein's MathWorld. (Pseudoprimes) http://mathworld.wolfram.com/CarmichaelNumber.html
Perrin Numbers Perrin Numbers: Perrin pseudoprimes with lists and Perrin number calculator. (Pseudoprimes) http://www.ai.univie.ac.at/perrin.html
Generalized Carmichael Numbers Generalized Carmichael Numbers: Report by Ashish Kumar Singh and Surendra Kumar Pathak. (PS.GZ) (Pseudoprimes) http://www.cse.iitk.ac.in/research/btp2001/GCN.html
Pseudoprimes Based On Symmetric Functions Pseudoprimes Based On Symmetric Functions: Basic propositions and computational techniques. (Pseudoprimes) http://mathpages.com/home/kmath003/kmath003.htm