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