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

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

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

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

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