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