Numbers k such that 30*k and 60*k are both the average of twin prime pairs.

Terms

a(0) =1a(1) =22a(2) =27a(3) =71a(4) =85a(5) =111a(6) =113a(7) =195a(8) =209a(9) =351a(10) =1106a(11) =1387a(12) =1471a(13) =1785a(14) =1848a(15) =1911a(16) =2128a(17) =2170a(18) =2346a(19) =2366a(20) =2409a(21) =2470a(22) =2492a(23) =2626a(24) =2689a(25) =2731a(26) =2918a(27) =3108a(28) =3410a(29) =3849