Function catalan

The Catalan Numbers enumerate combinatorial structures of many different types. catalan only takes integer arguments. The following condition must be enforced: n >= 0

Syntax

catalan(n)

Parameters

Parameter Type Description
n Number | BigNumber nth Catalan number

Returns

Type Description
Number | BigNumber Cn(n)

Examples

catalan(3); // returns 5;
catalan(8); // returns 1430;

See also

bellNumbers