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