15 lines
234 B
Lua
15 lines
234 B
Lua
function collatz(n)
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io.write(n)
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while n > 1 do
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if (n % 2) == 0 then
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n = n // 2
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else
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n = 3 * n + 1
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end
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io.write(' ' .. n)
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end
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io.write('\n')
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end
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assert(#arg ~= 0, 'expected initial number')
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collatz(tonumber(arg[1]))
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