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Catalan numbers: Difference between revisions

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Catalan numbers (view source)

Revision as of 08:18, 24 March 2014

23 bytes removed ,  10 years ago
→‎{{header|PicoLisp}}: Simplified 'cache' argument semantics
(Added Wortel)
(→‎{{header|PicoLisp}}: Simplified 'cache' argument semantics)
Line 2,016:
(if (=0 N)
1
(cache '(NIL) (pack (char (hash N)) N) # Memoize
(sum
'((I) (* (catalanRec I) (catalanRec (- N I 1))))
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