RosettaCodeData/Task/Fibonacci-sequence/Shen/fibonacci-sequence.shen
2023-07-01 13:44:08 -04:00

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Text

(define fib
0 -> 0
1 -> 1
N -> (+ (fib (+ N 1)) (fib (+ N 2)))
where (< N 0)
N -> (+ (fib (- N 1)) (fib (- N 2))))