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