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

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

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

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

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