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