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

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

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

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

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