Thabit {Zseq}

Thabit numbers

Description

Under OEIS A055010, the nth Thabit number is given as

A_n = 3*2^{n-1}-1

where the first 6 entries are 0, 2, 5, 11, 23, 47 with A_0 = 0.

Usage

Thabit(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 Thabit numbers
print(Thabit(30))