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