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

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

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

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

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