Catalan numbers: Difference between revisions
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=={{header|Perl 6}}== |
=={{header|Perl 6}}== |
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We'll use the formula |
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<math>C_n = \frac{2(2n - 1)}{n+1}C_{n-1}</math> |
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and we'll observe that the sequences <math>2(2n-1)|_{n=1\rightarrow\infty}</math> |
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and <math>n-1|_{n=1\rightarrow\infty}</math> are respectively 2, 6, 10...etc and 2, 3...etc. |
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<lang perl6>constant Catalan = 1, [\*] (2, 6 ... *) Z/ 2 .. *; |
<lang perl6>constant Catalan = 1, [\*] (2, 6 ... *) Z/ 2 .. *; |
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