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