Rim hook
= Rim hook
{wiki}
A rim hook, or border strip, is a connected skew Young diagram containing no $2\times2$ square. Its leg length is one less than its number of occupied rows.
= Rim hook
{wiki}
A rim hook, or border strip, is a connected skew Young diagram containing no $2\times2$ square. Its leg length is one less than its number of occupied rows.