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