# simsun permutation

> English word · Noun

## Definitions
1. A permutation in which, for all k, the subsequence of the smallest k elements has no three consecutive elements in decreasing order.

## Etymology
From the initial syllables of the surnames of Rodica Simion and Sheila Sundaram, who introduced them.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/simsun-permutation