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