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