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

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

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

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

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