The straight polyomino of order 
is the 
-polyomino in which all squares
are placed along a line.
Straight Polyomino
See also
L-Polyomino, Skew Polyomino, Square Polyomino, T-PolyominoExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Straight Polyomino." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/StraightPolyomino.html