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