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