1: (0 1 13)

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

2: (3 13 21)

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

3: (2 19 4)

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

4: (1 20 13)

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