Ado [Simone Caramel]'s function: a(0) = 1, a(n) = a(n-1) + 2*(Fibonacci(n+1)-n), n > 0.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =9a(6) =23a(7) =51a(8) =103a(9) =195a(10) =353a(11) =619a(12) =1061a(13) =1789a(14) =2981a(15) =4925a(16) =8087a(17) =13221a(18) =21547a(19) =35039a(20) =56891a(21) =92271a(22) =149541a(23) =242231a(24) =392233a(25) =634969a(26) =1027753a(27) =1663321a(28) =2691723a(29) =4355745