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