Invertible transformations on permutation representations, including an RNG-free in-place Fisher-Yates-Knuth shuffle
Implementation of https://xkcd.com/2835/
Efficient Combinatorics library for JavaScript using ES2015 generator functions. Generate power set, combination, and permutation.
Rust implementation of Randall Munroe's variable base factoradic number system: https://xkcd.com/2835/
Combinatorial and factorial number systems
Topological AIR chip used by ruma-zk-prover.