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