The code is 16-character HEX format. The first 6 are the HEX of the on code; the second 6 are the HEX of the off code; the last 4 are the HEX of the timing (in us). For example, your on code is 1381649, so the first 6 digits of the code would be 151511; similarly the next 6 digits would be 151514. You didn’t publish the timing so I don’t know what the last 4 digits would be.