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

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

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

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

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