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