Figure 1From: The top-scoring ‘N’ algorithm: a generalized relative expression classification method from small numbers of biomoleculesThe Lehmer code. A complete translation from permutation to decimal, by way of the factoradic, for a permutation of size 4. Each permutation is mapped to a single unique decimal representation. Two additional translations from permutation to factoradic are shown in Additional file1: Figure S2.Back to article page