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