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