a(n) = Sum_{i=1..F(n)} F(i), where F = A000045, Fibonacci numbers.
A158569
a(n) = Sum_{i=1..F(n)} F(i), where F = A000045, Fibonacci numbers.
Terms
- a(0) =0a(1) =1a(2) =1a(3) =2a(4) =4a(5) =12a(6) =54a(7) =609a(8) =28656a(9) =14930351a(10) =365435296161
External references
- oeis: A158569