Number of monomials in c(n) where c(1) = x, c(2) = y, c(n+2) = c(n+1) + c(n)^2.

Terms

a(0) =1a(1) =1a(2) =2a(3) =3a(4) =5a(5) =8a(6) =14a(7) =24a(8) =44a(9) =80a(10) =152a(11) =288a(12) =560a(13) =1088a(14) =2144a(15) =4224a(16) =8384a(17) =16640a(18) =33152a(19) =66048a(20) =131840a(21) =263168a(22) =525824a(23) =1050624a(24) =2100224a(25) =4198400a(26) =8394752a(27) =16785408a(28) =33566720a(29) =67125248