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

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

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

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

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