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

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

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

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

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