Explanation 24x24 magic square
The 24x24 magic is an even multiple of 4, but no 2n (= 4x4, 8x8, 16x16, 32x32, ... magic square). It is possible to construct a Franklin panmagic 24x24 square, but not all methods (for example Sudoku method 3 does not work) can be applied to construct the 24x24 magic square.
Methods to construct the 24x24 magic square are:
Symmetric transformation (Liki) and basic key method (ultra magic) leads to ultra magic 24x24 squares.
The Medjig magic square, the composite magic squares and the concentric magic square are a 'specials'
With the remaining methods you can construct most perfect (Franklin pan)magic 24x24 squares.