Expansion of g.f. 1/((1-3*x)*(1-4*x)*(1-6*x)).

Terms

a(0) =1a(1) =13a(2) =115a(3) =865a(4) =5971a(5) =39193a(6) =249355a(7) =1555105a(8) =9573091a(9) =58428073a(10) =354585595a(11) =2143759345a(12) =12928070611a(13) =77832076153a(14) =468051849835