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

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

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

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

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