Hypotenuse C 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.

A155175

Hypotenuse C 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) =5a(1) =13a(2) =113a(3) =221a(4) =841a(5) =1741a(6) =3961a(7) =5101a(8) =8581a(9) =9941a(10) =11705a(11) =12013a(12) =20605a(13) =21841a(14) =23113a(15) =26681a(16) =47741a(17) =61601a(18) =78013a(19) =82013a(20) =102605a(21) =103513a(22) =122513a(23) =151801a(24) =276025a(25) =289561a(26) =340313a(27) =418613a(28) =481181a(29) =501001

External references