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

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

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

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

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