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

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

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

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

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