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