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

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

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

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

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