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