Numbers n such that 6n and 12n are both the average of twin prime pairs.

Terms

a(0) =1a(1) =5a(2) =110a(3) =135a(4) =355a(5) =425a(6) =555a(7) =565a(8) =975a(9) =1045a(10) =1755a(11) =5530a(12) =6935a(13) =7355a(14) =8925a(15) =9240a(16) =9555a(17) =10640a(18) =10850a(19) =11730a(20) =11830a(21) =12045a(22) =12350a(23) =12460a(24) =13130a(25) =13445a(26) =13655a(27) =14590a(28) =15540a(29) =17050