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

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

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

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

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