de bruijn sequence generator
Summary
Request the addition of a "de bruijn sequence generator" that can generate rolling keycode combinations for use with such lock mechanisms/systems.
Example
System would accept a k and n value and generate a sequence appropriately. See http://www.hakank.org/comb/debruijn.cgi for reference and additional information.
Bonus enhancement: would be to provide a comma separated list of values for k, for example "1,2,3,4" "A,B,C,D", "Square, Triangle, Circle, Line".