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

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

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

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

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