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

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

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

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

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