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

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

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

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

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