A026344 a(n) = greatest k such that s(k) = n, where s = A026342.

2, 5, 6, 11, 12, 14, 15, 20, 24, 26, 27, 29, 32, 33, 35, 38, 42, 45, 47, 51, 54, 56, 59, 60, 62, 65, 66, 69, 72, 74, 75, 78, 80, 83, 86, 87, 92, 95, 96, 101, 102, 105, 107, 110, 114, 116, 119, 122, 123, 126, 128, 132, 134, 135, 137, 140