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