Inputs:

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 20, 21, 22, 23

Outputs:

16 (Combinatorial, Output feedback output, Active low)
17 (Combinatorial, Output feedback output, Active low)
18 (Combinatorial, No output feedback, Active low)
19 (Combinatorial, No output feedback, Active low)
20 (Combinatorial, Output feedback output, Active low)
21 (Combinatorial, Output feedback output, Active low)

Equations:

/o16 = /i1 & /i2 +
       /i3 & /i7 +
       /i4 & /i8 +
       /i5 & /i6
o16.oe = vcc

/o17 = /i9 & /i10 +
       /i13 & /i15 +
       i1 & i2 & i3 +
       i4 & i5 & i6 & /i14
o17.oe = vcc

/o18 = i7 +
       i8 & i15
o18.oe = vcc

/o19 = i9 & i10 & i14 +
       i13 & /i22
o19.oe = vcc

/o20 = /i2 & i5 +
       i6 & /i7 +
       i3 & i6 +
       i7 & i13 & i23
o20.oe = vcc

/o21 = i5 & i6 & i22 +
       /i7 & i11 +
       /i23 +
       /i1 & i3 & i6 & i7 & i10
o21.oe = vcc

