Averages of twin prime pairs k such that k*7 and k/7 are squares.

Terms

a(0) =2268a(1) =6300a(2) =30492a(3) =49392a(4) =81648a(5) =100800a(6) =170352a(7) =183708a(8) =197568a(9) =211932a(10) =242172a(11) =363888a(12) =444528a(13) =681408a(14) =847728a(15) =1032192a(16) =1342908a(17) =1694448a(18) =1820700a(19) =2041200a(20) =3049200