A052490 Numbers n with only one nonzero solution to "numbers that are n times sum of their digits".

2, 3, 5, 6, 8, 9, 11, 12, 14, 15, 17, 18, 20, 21, 23, 24, 29, 30, 32, 33, 35, 39, 41, 42, 44, 45, 50, 51, 53, 54, 56, 57, 59, 60, 66, 68, 69, 71, 72, 74, 77, 78, 80, 81, 83, 86, 87, 89, 90, 92, 93, 96, 98, 99, 101, 102, 104, 105, 108, 110, 111, 113, 114, 117, 119, 120, 122