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

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

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

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

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