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

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

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

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

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