# Odd Permutations Calculator

> Count the odd permutations of a set of distinct elements.

Page: https://askcalculators.com/calculator/odd-permutations-calculator/
Definition: https://askcalculators.com/calculator/odd-permutations-calculator/definition.json
JSON Schema: https://askcalculators.com/calculator/odd-permutations-calculator/schema.json
Version: 1.0.0
Maintained by: AskCalculators (software project; not a credentialed reviewer)
Qualified review: pending. Automated checks do not establish professional approval.
Page status: Live
Review status: Pending

## Use
Open the calculator page and enter values. Query-string parameters can restore and bookmark a calculation.
Example: https://askcalculators.com/calculator/odd-permutations-calculator/?n=6

## Inputs
- n: Number of elements n; type=number; required; default=6; min=2; max=1000

## Outputs
- permutations: Odd permutations; format=text; primary
- totalPermutations: Total permutations n!; format=text

## Formula
odd permutations = n! ÷ 2 for n ≥ 2

## Rules
- Empty optional inputs are undefined, not zero.
- Hidden conditional inputs are ignored.
- Do not invent missing required inputs.