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

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

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

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

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