1: (0 1 3)

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

2: (1 5 13)

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

3: (4 14 11)

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

4: (3 21 13)

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