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