There is not a worksheet. In prior years there has been a worksheet for the analogous Line 20. In my unfortunate experience, the worksheet was always entirely unhelpful. I could usually get the sum of 17, 19, and 20 (now k, m, and n) to mostly match my current year AMT adjustments further adjusted by the change in passive carryforwards from the prior year and to the following year. But the logic of how much ended up on which line was never clear.

With only 4, and all of them non-passive (with plenty of basis and at risk?), I'd expect that the sum of those three numbers to match my hand calculation exactly. Once you get up into the 10s of K-1s, the odds of having bogus -1 errors really goes up and you have to decide about materiality.