Expansion of (1-x)/(1-2*x-3*x^2-2*x^3).

Terms

a(0) =1a(1) =1a(2) =5a(3) =15a(4) =47a(5) =149a(6) =469a(7) =1479a(8) =4663a(9) =14701a(10) =46349a(11) =146127a(12) =460703a(13) =1452485a(14) =4579333a(15) =14437527a(16) =45518023a(17) =143507293a(18) =452443709a(19) =1426445343a(20) =4497236399a(21) =14178696245a(22) =44701992373a(23) =140934546279a(24) =444332462167