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

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

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

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

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