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

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

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

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

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