Thinking about some of the higher math.
36 minus 28 equals 8 skipped; 8 skipped rim holes distributed over 36 >> spoke 7, then skip 2 (rim), and repeat x 3 (?).
Something to consider, do the spokes end up going to the otherwise correct 'left-right' holes.
Probably avoid the 4x cross-over pattern; not sure, but guessing the 28 spoke lengths could all be the same as each other.
For symmetry, one may choose to skip the 2 rim holes about the valve stem.
One approach might be to tape over the unused holes (36,1, 9,10, 18,19, 27,28) in advance and 'pretend' that they are not even there.