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