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