1: (0 1 2)

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

2: (1 4 13)

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

3: (3 16 11)

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

4: (2 21 13)

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