Long leg B 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.

A155174

Long leg B 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) =4a(1) =12a(2) =112a(3) =220a(4) =840a(5) =1740a(6) =3960a(7) =5100a(8) =8580a(9) =9940a(10) =11704a(11) =12012a(12) =20604a(13) =21840a(14) =23112a(15) =26680a(16) =47740a(17) =61600a(18) =78012a(19) =82012a(20) =102604a(21) =103512a(22) =122512a(23) =151800a(24) =276024a(25) =289560a(26) =340312a(27) =418612a(28) =481180a(29) =501000

External references