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