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