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

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

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

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

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