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