1: (0 1 3)

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

2: (1 5 13)

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

3: (4 15 6)

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

4: (3 21 13)

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