(0 20 18)(1 21 16 4 2)(3 9 5)(6 12 10)(7 22 8)(11 15 13)(14 19 17)
ALLOWS (11/8)-SEQUENCE
1: (0 1 18)
(0)(1 20 18 21 16 4 2)(3 9 5)(6 12 10)(7 22 8)(11 15 13)(14 19 17)
2: (16 18 21)
(0)(1 20 18 4 2)(3 9 5)(6 12 10)(7 22 8)(11 15 13)(14 19 17)(16)(21)
3: (14 19 17)
(0)(1 20 18 4 2)(3 9 5)(6 12 10)(7 22 8)(11 15 13)(14)(16)(17)(19)(21)
4: (4 20 18)
(0)(1 20 2)(3 9 5)(4)(6 12 10)(7 22 8)(11 15 13)(14)(16)(17)(18)(19)(21)