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