(0 20 17)(1 15 14)(2 18 3 21 5)(4 13 11 8 6)(7 10 9)(12 19 16)
ALLOWS (11/8)-SEQUENCE
1: (0 4 13)

(0 11 8 6 4 20 17)(1 15 14)(2 18 3 21 5)(7 10 9)(12 19 16)(13)
2: (2 18 5)

(0 11 8 6 4 20 17)(1 15 14)(2)(3 21 5)(7 10 9)(12 19 16)(13)(18)
3: (12 19 16)

(0 11 8 6 4 20 17)(1 15 14)(2)(3 21 5)(7 10 9)(12)(13)(16)(18)(19)
4: (0 11 4)

(0 20 17)(1 15 14)(2)(3 21 5)(4 8 6)(7 10 9)(11)(12)(13)(16)(18)(19)