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