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