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