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

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

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

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

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