1: (0 3 11)

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

2: (1 15 8)

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

3: (2 19 4)

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

4: (11 14 18)

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