(0 21 3)(1 20 16 5 4)(2 19 14 12 7)(6 10 8)(9 17 11)(13 18 15)
ALLOWS (11/8)-SEQUENCE
1: (0 4 16)
(0 5 4 21 3)(1 20 16)(2 19 14 12 7)(6 10 8)(9 17 11)(13 18 15)
2: (2 19 14)
(0 5 4 21 3)(1 20 16)(2 12 7)(6 10 8)(9 17 11)(13 18 15)(14)(19)
3: (13 18 15)
(0 5 4 21 3)(1 20 16)(2 12 7)(6 10 8)(9 17 11)(13)(14)(15)(18)(19)
4: (1 20 16)
(0 5 4 21 3)(1)(2 12 7)(6 10 8)(9 17 11)(13)(14)(15)(16)(18)(19)(20)