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