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