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