Expansion of 1/((1 - x)*(1 - 4*x + 2 * x^2)).

Terms

a(0) =1a(1) =5a(2) =19a(3) =67a(4) =231a(5) =791a(6) =2703a(7) =9231a(8) =31519a(9) =107615a(10) =367423a(11) =1254463a(12) =4283007a(13) =14623103a(14) =49926399a(15) =170459391a(16) =581984767a(17) =1987020287a(18) =6784111615a(19) =23162405887a(20) =79081400319a(21) =270000789503a(22) =921840357375