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