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