1: (0 2 15)

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

2: (1 20 4)

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

3: (0 2 15)

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

4: (3 20 6)

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