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

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

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

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

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