Catalan numbers: Difference between revisions
Added Quackery.
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(Added Quackery.) |
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Line 4,014:
742900 742900 742900
2674440 2674440 2674440</pre>
=={{header|Quackery}}==
<lang Quackery> [ 1 over times [ over i 1+ + * ] nip ] is 2n!/n! ( n --> n )
[ times [ i 1+ / ] ] is /n! ( n --> n )
[ dup 2n!/n! swap 1+ /n! ] is catalan ( n --> n )
15 times [ i^ dup echo say " : " catalan echo cr ]</lang>
{{out}}
<pre>0 : 1
1 : 1
2 : 2
3 : 5
4 : 14
5 : 42
6 : 132
7 : 429
8 : 1430
9 : 4862
10 : 16796
11 : 58786
12 : 208012
13 : 742900
14 : 2674440
</pre>
=={{header|R}}==
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