Catalan numbers: Difference between revisions
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m (→{{header|Lua}}: Minor tidying) |
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=={{header|Lua}}== |
=={{header|Lua}}== |
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<syntaxhighlight lang="lua">-- recursive with memoization |
<syntaxhighlight lang="lua">-- recursive with memoization |
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catalan = {[0] = 1} |
local catalan = { [0] = 1 } |
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setmetatable(catalan, { |
setmetatable(catalan, { |
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__index = function(c, n) |
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c[n] = c[n - 1] * 2 * (2 * n - 1) / (n + 1) |
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return c[n] |
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end |
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}) |
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) |
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for i=0,14 do |
for i = 0, 14 do |
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print(string.format("%d", catalan[i])) |
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end</syntaxhighlight> |
end</syntaxhighlight> |
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{{out}} |
{{out}} |
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<pre> |
<pre>1 |
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1 |
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1 |
1 |
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2 |
2 |
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742900 |
742900 |
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2674440</pre> |
2674440</pre> |
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=={{header|MAD}}== |
=={{header|MAD}}== |
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