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