1: (0 3 6)

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

2: (4 6 15)

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

3: (5 19 11)

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

4: (10 16 13)

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