174811domain: NAppears in sequencesExpansion of 1/((1-9*x)*(1-10*x)*(1-12*x)).at n=4A020983Bitwise encoding of the state of a 1D cellular automaton after n steps from ...111000... where adjacent cells swap 01 <-> 10 when within triples 110 or 011.at n=41A359303