I understood the statement that this is what you are looking for, but I have doubts as to how many numbers the list should have where the numbers are going to be added. In the example provided, dbl_linear(10) the parameter is 10 and u = [1 , 3, 4, 7, 9, 10, 13, 15, 19, 21, 22, 27, ...] and I see that 10 + 1 positions were produced in the list, is the statement correct? excuse my english