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

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

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

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

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