Catalan numbers: Difference between revisions
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15 9694845 9694845 9694845</pre>
=={{header|OCaml}}==
<lang OCaml>
let catalan : int ref = ref 0 in
Printf.printf "%d ," 1 ;
for i = 2 to 9 do
let nm : int ref = ref 1 in
let den : int ref = ref 1 in
for k = 2 to i do
nm := (!nm)*(i+k);
den := (!den)*k;
catalan := (!nm)/(!den) ;
done;
print_int (!catalan); print_string "," ;
done;;
</lang>
{{out}}
<pre>
1 ,2,5,14,42,132,429,1430,4862(upto 9 numbers only)
</pre>
=={{header|Oforth}}==
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