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

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

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

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

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