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