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