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

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

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

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

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