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

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

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

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

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