1: (0 2 15)

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

2: (1 21 13)

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

3: (0 10 15)

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

4: (8 14 11)

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