Copyright © University of Cambridge. All rights reserved.

'Snowman' printed from https://nrich.maths.org/

Show menu

All the words in the Snowman language consist of exactly seven letters formed from the letters {s, no, wm, an} arranged in some order where the paired letters cannot be separated. For example ``snonono'' and ``sssanwm'' are words in the language but ``sssmwan'' and ``sssawmn'' are not. How many words are there in the Snowman language?