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

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

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

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

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