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