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