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