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

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

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

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

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