Factorial.Alternating

A005165

Under OEIS <a href="https://oeis.org/A005165">A005165</a>, an Alternating Factorial is the absolute value of the alternating sum of the
first <code>n</code> factorials of positive integers. First 6 such numbers are 	0, 1, 1, 5, 19, 101.

Generates well-known integer sequences. 'gmp' package is adopted for computing with arbitrarily large numbers. Every function has hyperlink to its corresponding item in OEIS (The On-Line Encyclopedia of Integer Sequences) in the function help page. For interested readers, see Sloane and Plouffe (1995, ISBN:978-0125586306).

Kisung You

Zseq

Integer Sequence Generator

Factorial.Alternating function

<dl><dt>n</dt>
<dd>the number of first <code>n</code> entries from the sequence.</dd>
<dt>gmp</dt>
<dd>a logical; <code>TRUE</code> to use large number representation, <code>FALSE</code> otherwise.</dd></dl>

Arguments

Under OEIS <a href='https://oeis.org/A005165'>A005165</a>, an Alternating Factorial is the absolute value of the alternating sum of the
first <code>n</code> factorials of positive integers. First 6 such numbers are 	0, 1, 1, 5, 19, 101.

Alternating Factorial numbers — Factorial.Alternating

<dl>

<dt>n</dt>
<dd>the number of first <code>n</code> entries from the sequence.</dd>


<dt>gmp</dt>
<dd>a logical; <code>TRUE</code> to use large number representation, <code>FALSE</code> otherwise.</dd>

</dl>

Factorial.Alternating: Alternating Factorial numbers

Description

Usage

Value

Arguments

See Also

Examples