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