1: (0 3 15)

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

2: (1 21 4)

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

3: (3 20 6)

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

4: (5 16 13)

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