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

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

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

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

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