349929

Appears in sequences

• a(n) = T(n,0) + T(n,1) + ... + T(n,[ n/2 ]), T given by A027170.at n=16A027179
• Short leg A 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=11A155180