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