1: (0 4 15)

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

2: (2 19 8)

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

3: (4 17 13)

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

4: (10 16 14)

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