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

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

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

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

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