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

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

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

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

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