1: (0 1 15)

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

2: (3 15 21)

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

3: (2 18 4)

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

4: (1 19 15)

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