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

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

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

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

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