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

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

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

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

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