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

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

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

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

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