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:
For the 24x24 magic square I do not show how to composite the 24x24 magic square (see 12x12, 16x16 or 20x20 magic square) or how to use symmetric transformation (see 12x12, 16x16 or 20x20 magic square).
Basic key method (ultra magic) leads to an ultra magic 24x24 square.
The concentric magic square is a 'special'
With the remaining methods you can construct most perfect (Franklin pan)magic 24x24 squares.