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