Zseq (version 0.1.1)

Unusual: Unusual numbers

Description

Under OEIS A064052, an Unusual number is a natural number whose largest prime factor is strictly greater than square root of the number. First 6 Unusual numbers are 2, 3, 5, 6, 7, 10.

Usage

Unusual(n, Rmpfr = TRUE, PrecisionBits = 496)

Arguments

n

the number of first n entries from the sequence.

Rmpfr

a logical; TRUE to use large number representation, FALSE otherwise.

PrecisionBits

a positive integer for precision bits larger than 2.

Value

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

Examples

# NOT RUN {
## generate first 20 Unusual numbers
first20 = Unusual(20)

## print without trailing 0's.
print(first20, drop0trailing = TRUE)

# }