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

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

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

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

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