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