230888

Appears in sequences

• Numerator of (9*(n^4 - 2*n^3 + 2*n^2 - n) + 2)/(2*(2*n-1)).at n=22A096430
• Number of (w,x,y,z) with all terms in {1,...,n} and w > |x-y| + |y-z|.at n=28A212674