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

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

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

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

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