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