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