Expansion of 1/((1-4x)(1-5x)(1-9x)).

Terms

a(0) =1a(1) =18a(2) =223a(3) =2376a(4) =23485a(5) =222894a(6) =2067787a(7) =18935172a(8) =172107529a(9) =1557684810a(10) =14063797111a(11) =126801537408