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

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

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

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

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