1: (0 1 3)

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

2: (1 5 7)

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

3: (4 8 6)

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

4: (3 12 7)

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