
Four bidimensional Hilbert Curves -iterations 3, 5, 7 and 9 respectively- [Quatre courbes de Hilbert bidimensionnelle -itérations 3, 5, 7 et 9 respectivement-].
---------
| 03 | 04 |
|----+----|
| 01 | 02 |
---------
-------------------
| 13 | 14 | 15 | 16 |
|----+----+----+----|
| 09 | 10 | 11 | 12 |
|----+----+----+----|
| 05 | 06 | 07 | 08 |
|----+----+----+----|
| 01 | 02 | 03 | 04 |
-------------------
---------------------------------------
| 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 |
|----+----+----+----+----+----+----+----|
| 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 |
|----+----+----+----+----+----+----+----|
| 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 |
|----+----+----+----+----+----+----+----|
| 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 |
|----+----+----+----+----+----+----+----|
| 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 |
|----+----+----+----+----+----+----+----|
| 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 |
|----+----+----+----+----+----+----+----|
| 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
|----+----+----+----+----+----+----+----|
| 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 |
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respectively for 2x2, 4x4 and 8x8 pictures.