Problem 42248. Return fibonacci sequence do not use loop and condition version 3

Calculate the nth Fibonacci number,return sequence

Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ...

in this time,return a function handle

 f  = fib(n)

generate the sequence from the n-th item

if n = 3

first call:

 f() = 2

second call

 f() = 3

third call

 f() = 5

if n = 7

first call:

 f() = 13

second call

 f() = 21

third call

 f() = 34

but, loop and conditional statement is forbidden

Solve

Last solution submitted on Nov 05, 2018