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

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

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

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

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