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