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

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

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

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

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