135950

Appears in sequences

• Number of (w,x,y,z) with all terms in {0,...,n} and at least one of these conditions holds: w=R, x<R, y<R, z<R, where R = max{w,x,y,z} - min{w,x,y,z}.at n=19A212749
• Number of tilings of a 12 X n rectangle using 3n tetrominoes of shape I.at n=12A251074