A096515 Solutions to A096509[x]=4; number of prime-powers [including primes] in the neighborhood of x with Ceiling[Log[x]] radius equals 4.
3, 4, 5, 6, 7, 9, 11, 14, 16, 21, 23, 25, 26, 30, 31, 33, 45, 62, 63, 64, 66, 68, 69, 76, 78, 84, 102, 104, 105, 106, 108, 123, 124, 125, 127, 128, 129, 130, 132, 163, 167, 168, 169, 173, 175, 193, 194, 195, 196, 197, 227, 228, 229, 233, 235, 237, 238, 239, 245, 257
Offset: 1
Keywords
Examples
n=63: in [58,68], {59,61,64,67} are the 4 corresponding prime powers.