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