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

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

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

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

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