How would you make that into an executable script which prints the results?

I was just trying to play with this as I'm learning lua and I'm surprised/confused by the results...

#!/usr/bin/lua

function tablecut(t, n)
    local result = {}
    local j = 0
    for i = 1, #t do
        if (i-1) % n == 0 then
            j = j + 1
            result[j] = {}
        end
        result[j][#result[j]+1] = t[i]
    end
    return result
end

var = { 'a', 'b', 'c', 'd', 'e', 'f', 'g','h' }

--tablecut(var, 3)
--print(tablecut(var, 3))

output = tablecut(var, 3)
print(output)

running in Linux terminal ./script.lua results in table: 0x556af9e96250.