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