Perimeter s/6 (divided by 6) of primitive Pythagorean triangles such that perimeters are Averages of twin prime pairs, q=p+1, a=q^2-p^2, c=q^2+p^2, b=2*p*q, s=a+b+c, s-+1 are primes.
A155176
Perimeter s/6 (divided by 6) of primitive Pythagorean triangles such that perimeters are Averages of twin prime pairs, q=p+1, a=q^2-p^2, c=q^2+p^2, b=2*p*q, s=a+b+c, s-+1 are primes.
Terms
- a(0) =2a(1) =5a(2) =40a(3) =77a(4) =287a(5) =590a(6) =1335a(7) =1717a(8) =2882a(9) =3337a(10) =3927a(11) =4030a(12) =6902a(13) =7315a(14) =7740a(15) =8932a(16) =15965a(17) =20592a(18) =26070a(19) =27405a(20) =34277a(21) =34580a(22) =40920a(23) =50692a(24) =92132a(25) =96647a(26) =113575a(27) =139690a(28) =160557a(29) =167167
External references
- oeis: A155176