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