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