A090343 Difference between the sums of the prime factors, including multiplicity, of n and those of n + 4.

-5, -3, -4, -2, -1, -2, -4, -1, -7, -2, 3, -1, -4, 1, -11, -1, 7, -5, -4, 0, 0, -2, 14, -2, -19, 5, -22, 1, 15, -9, 19, 0, -23, -2, -4, -1, -4, 9, -27, -4, 30, -13, -4, 4, -3, 13, 27, -6, -39, 1, 4, 4, 31, -20, -43, 1, -39, -2, 46, 0, 43, 17, -54, -9, -8, 2, -4, 9, -47, -25, 58, -11, 55, 21, -66, 10, 6, -25, -4, -1, -10, -2, 51, -3, -67