Numbers that are not the sum of two distinct Ulam numbers.

Terms

a(0) =23a(1) =25a(2) =33a(3) =35a(4) =43a(5) =45a(6) =67a(7) =92a(8) =94a(9) =96a(10) =111a(11) =121a(12) =136a(13) =143a(14) =160a(15) =165a(16) =170a(17) =172a(18) =187a(19) =194a(20) =204a(21) =226a(22) =231a(23) =248a(24) =265a(25) =270a(26) =280a(27) =287a(28) =292a(29) =297