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