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