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