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

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

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

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

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