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

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

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

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

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