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

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

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

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

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