1: (0 7 19)

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

2: (1 20 13)

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

3: (6 14 9)

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

4: (5 21 19)

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