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

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

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

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

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