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

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

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

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

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