Expansion of (1 - x)/(1 - x - 7*x^2).

Terms

a(0) =1a(1) =0a(2) =7a(3) =7a(4) =56a(5) =105a(6) =497a(7) =1232a(8) =4711a(9) =13335a(10) =46312a(11) =139657a(12) =463841a(13) =1441440a(14) =4688327a(15) =14778407a(16) =47596696a(17) =151045545a(18) =484222417a(19) =1541541232a(20) =4931098151a(21) =15721886775a(22) =50239573832a(23) =160292781257a(24) =511969798081