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