Triomino -- from Wolfram MathWorld
A triomino, also known as a tromino, is a 3-polyomino. There are two free polyominoes, (the same) two one-sided polyominoes, and 6 fixed polyominoes. The free polyominoes are known as the L-triomino (or right triomino) and straight triomino, respectively. There is also a game called triomino consisting of 55 equilateral triangles, each containing three numbers from 0 to 5 at each vertex. Every combination of tiles is in the game, although those tiles with three different values are allowed
Pythagorean Quadruple -- from Wolfram MathWorld
Trinomial Coefficient -- from Wolfram MathWorld
![](https://qph.cf2.quoracdn.net/main-qimg-ca9d71e02b4eab2cdc892b4b00bc9c13.webp)
A (2^k) × (2^k) chessboard has one of its squares missing. Can you
![](https://i.pinimg.com/736x/9a/b0/8a/9ab08a8b519fffbadf180e6e4d53f763.jpg)
Tessellation Patterns - From Mathematics to Art
![](https://demonstrations.wolfram.com/ComparingVotingSystemsForANormalDistributionOfVoters/img/popup_1.png)
Comparing Voting Systems for a Normal Distribution of Voters
Connected Sum -- from Wolfram MathWorld
![](https://www.agoralude.com/img/cms/images/un_hexagone_au_triominos-min.jpg)
Règles du Triominos - Comment jouer au Triominos ?
Polyomino -- from Wolfram MathWorld
![](https://demonstrations.wolfram.com/PenroseTilingsAndWieringaRoofs/img/popup_2.png)
Penrose Tilings and Wieringa Roofs - Wolfram Demonstrations Project
![](https://qph.cf2.quoracdn.net/main-thumb-29813966-200-ioivxpmgpwprrpspedgpgkuqlgzrmokg.jpeg)
A (2^k) × (2^k) chessboard has one of its squares missing. Can you
A (2^k) × (2^k) chessboard has one of its squares missing. Can you
![](https://itsenglishoclock.com/wp-content/uploads/2021/04/capture-decc81cran-2021-04-11-acc80-14.23.52-edited.png)
Générateur de Triominos – It's English O'Clock!
![](https://media.springernature.com/lw685/springer-static/image/chp%3A10.1007%2F978-3-030-63591-6_7/MediaObjects/490830_1_En_7_Fig5_HTML.png)
Exploring Tetris as a Transformation Semigroup