1: (0 3 13)

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

2: (1 20 7)

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

3: (2 19 4)

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

4: (3 14 5)

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