Composite n such that phi(n+2) = phi(n)+2.

Terms

a(0) =6a(1) =12a(2) =14a(3) =18a(4) =20a(5) =44a(6) =62a(7) =92a(8) =116a(9) =164a(10) =212a(11) =254a(12) =332a(13) =356a(14) =452a(15) =524a(16) =692a(17) =716a(18) =764a(19) =932a(20) =956a(21) =1004a(22) =1124a(23) =1172a(24) =1436a(25) =1676a(26) =1724a(27) =1772a(28) =1964a(29) =2036