A227030 Numbers that are neither the difference nor the product of two primes.
7, 13, 19, 23, 31, 37, 43, 47, 53, 61, 63, 67, 73, 75, 79, 83, 89, 97, 103, 109, 113, 117, 127, 131, 139, 151, 153, 157, 163, 167, 173, 175, 181, 193, 199, 207, 211, 223, 229, 233, 241, 243, 245, 251, 257, 263, 271, 273, 277, 283, 285, 293, 297, 307, 313, 317
Offset: 1