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