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

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

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

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

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