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