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