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

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

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

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

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