A000108: Catalan numbers

In Zseq: Integer Sequence Generator

Catalan numbers

Description

Under OEIS A000108, the nth Catalan number is given as

C_n = \frac{(2n)!}{(n+1)!n!}

where the first 6 entries are 1, 1, 2, 5, 14, 42 with n≥ 0.

Usage

Catalan(n, gmp = TRUE)

Arguments

n	the number of first n entries from the sequence.
gmp	a logical; TRUE to use large number representation, FALSE otherwise.

Value

a vector of length n containing first entries from the sequence.

Examples

## generate first 30 Catalan numbers
print(Catalan(30))

Zseq documentation built on Sept. 7, 2022, 5:06 p.m.