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

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

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

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

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