1: (0 1 5)

(0)(1 15 13 10 5 20 9 7 3)(2 6 4)(8 12 11)(14 18 16)(17 21 19)

2: (3 5 20)

(0)(1 15 13 10 5)(2 6 4)(3 9 7)(8 12 11)(14 18 16)(17 21 19)(20)

3: (2 6 4)

(0)(1 15 13 10 5)(2)(3 9 7)(4)(6)(8 12 11)(14 18 16)(17 21 19)(20)

4: (1 15 5)

(0)(1)(2)(3 9 7)(4)(5 13 10)(6)(8 12 11)(14 18 16)(15)(17 21 19)(20)