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

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

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

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

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