143448

Appears in sequences

• Nonnegative values x of solutions (x, y) to the Diophantine equation x^2+(x+857)^2 = y^2.at n=10A129857
• Triangle read by rows, T(n, k) = ( ( 6 * Sum_{j=0..k+1} (-1)^j * binomial(n+1, j) * (k-j+1)^n ) - 4 * binomial(n-1, k) ) / 2.at n=47A141696
• Number of triangles in a Star of David of size n.at n=24A299965