1: (0 1 15)

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

2: (4 15 19)

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

3: (3 17 12)

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

4: (10 16 13)

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