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