Expansion of 1/((1-x)(1-10x)(1-100x)).A109242Expansion of 1/((1-x)(1-10x)(1-100x)).Terms a(0) =1a(1) =111a(2) =11211a(3) =1122211a(4) =112232211a(5) =11223332211External referencesoeis: A109242