159953

Appears in sequences

• Number of (w,x,y,z) with all terms in {1,...,n} and w >= |x-y| + |y-z|.at n=25A212675
• If F is the Fermat point of a triangle ABC with A < B < C < 2*Pi/3, where AB, BC, CA, FA, FB and FC are all positive integers, then, this sequence gives the sum FA + FB + FC when gcd(a, b, c) = A351477(n).at n=20A351476