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

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

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

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

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