a(n) = F(n+3) + c(n) where F(k) is k-th Fibonacci number and c(n) is n-th number that is 1 or 2 or is not a Fibonacci number.
A022809
a(n) = F(n+3) + c(n) where F(k) is k-th Fibonacci number and c(n) is n-th number that is 1 or 2 or is not a Fibonacci number.
Terms
- a(0) =4a(1) =7a(2) =12a(3) =19a(4) =28a(5) =43a(6) =65a(7) =100a(8) =156a(9) =247a(10) =392a(11) =626a(12) =1004a(13) =1615a(14) =2603a(15) =4201a(16) =6787a(17) =10969a(18) =17735a(19) =28682a(20) =46394a(21) =75052a(22) =121421a(23) =196447a(24) =317841a(25) =514260a(26) =832072a(27) =1346302a(28) =2178344a(29) =3524614
External references
- oeis: A022809