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