673456

Appears in sequences

• Number of (w,x,y,z) with all terms in {1,...,n} and w<=2x and y<3z.at n=32A212512
• 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=28A212753