Composite numbers that are not the sum of 2 primes.

Terms

a(0) =27a(1) =35a(2) =51a(3) =57a(4) =65a(5) =77a(6) =87a(7) =93a(8) =95a(9) =117a(10) =119a(11) =121a(12) =123a(13) =125a(14) =135a(15) =143a(16) =145a(17) =147a(18) =155a(19) =161a(20) =171a(21) =177a(22) =185a(23) =187a(24) =189a(25) =203a(26) =205a(27) =207a(28) =209a(29) =215