A026175 a(n) = s(k), where k is the n-th number satisfying s(j)<s(k) for all j<k, where s = A026172.

1, 3, 7, 9, 15, 19, 21, 25, 27, 33, 39, 43, 45, 51, 55, 57, 61, 63, 69, 73, 75, 79, 81, 87, 93, 97, 99, 105, 111, 115, 117, 123, 127, 129, 133, 135, 141, 147, 151, 153, 159, 163, 165, 169, 171, 177, 181, 183, 187, 189, 195, 201, 205, 207