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