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