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

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

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

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

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