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

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

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

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

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