a(n) = b(n) + d(n), where b(n) = (n-th Fibonacci number > 2) and d(n) = (n-th number that is 1 or is not a Fibonacci number).

A023488

a(n) = b(n) + d(n), where b(n) = (n-th Fibonacci number > 2) and d(n) = (n-th number that is 1 or is not a Fibonacci number).

Terms

    a(0) =4a(1) =9a(2) =14a(3) =20a(4) =30a(5) =44a(6) =66a(7) =101a(8) =158a(9) =248a(10) =393a(11) =627a(12) =1005a(13) =1616a(14) =2604a(15) =4203a(16) =6788a(17) =10970a(18) =17736a(19) =28683a(20) =46395a(21) =75053a(22) =121422a(23) =196448a(24) =317842a(25) =514261a(26) =832073a(27) =1346304a(28) =2178345a(29) =3524615

External references