(0 20 17 15 7)(1 13 11 9 3)(2 6 4)(5 10 8)(12 16 14)(18 21 19)
ALLOWS (11/8)-SEQUENCE
1: (0 1 7)
(0)(1 20 17 15 7 13 11 9 3)(2 6 4)(5 10 8)(12 16 14)(18 21 19)
2: (7 13 15)
(0)(1 20 17 15 11 9 3)(2 6 4)(5 10 8)(7)(12 16 14)(13)(18 21 19)
3: (12 16 14)
(0)(1 20 17 15 11 9 3)(2 6 4)(5 10 8)(7)(12)(13)(14)(16)(18 21 19)
4: (1 15 11)
(0)(1 9 3)(2 6 4)(5 10 8)(7)(11)(12)(13)(14)(15 20 17)(16)(18 21 19)