RosettaCodeData/Task/Fibonacci-sequence/Lua/fibonacci-sequence-4.lua
2023-07-01 13:44:08 -04:00

1 line
97 B
Lua

fib_n = setmetatable({1, 1}, {__index = function(z,n) return n<=0 and 0 or z[n-1] + z[n-2] end})