Catalan numbers: Difference between revisions
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(→{{header|BBC BASIC}}: Problem!) |
(→{{header|EchoLisp}}: Problem!) |
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=={{header|EchoLisp}}== |
=={{header|EchoLisp}}== |
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{{incorrect|Echolisp|series starts 1, 1, 2, ...}} |
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<lang scheme> |
<lang scheme> |
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(lib 'sequences) |
(lib 'sequences) |