A026282 a(n) = greatest k such that s(k) = n, where s = A026280.

5, 7, 9, 11, 14, 17, 20, 23, 25, 28, 30, 33, 35, 38, 40, 43, 46, 48, 51, 54, 56, 59, 62, 64, 67, 70, 72, 75, 77, 80, 83, 85, 88, 90, 93, 96, 98, 101, 103, 106, 109, 111, 114, 116, 119, 122, 124, 127, 130, 132, 135, 137, 140, 143, 145