187544

Appears in sequences

• Nonnegative values x of solutions (x, y) to the Diophantine equation x^2+(x+223)^2 = y^2.at n=13A130609
• Numbers p of primitive Pythagorean triangles such that perimeters and products of 3 sides are Averages of twin prime pairs, q=p+1, a=q^2-p^2, c=q^2+p^2, b=2*p*q, ar=a*b/2; s=a+b+c, s-+1 are primes, pr=a*b*c, pr-+1 are primes.at n=12A155178