Coefficients in the expansion of 1/([r] + [2r]x + [3r]x^2 + ...); [ ] = floor, r = 9/5.

Terms

a(0) =1a(1) =-3a(2) =4a(3) =-4a(4) =4a(5) =-3a(6) =-1a(7) =8a(8) =-16a(9) =24a(10) =-30a(11) =28a(12) =-12a(13) =-20a(14) =68a(15) =-128a(16) =184a(17) =-208a(18) =168a(19) =-32a(20) =-224a(21) =592a(22) =-1008a(23) =1344a(24) =-1408a(25) =960a(26) =224a(27) =-2240a(28) =4928a(29) =-7744