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