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

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

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

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

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