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