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

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

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

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

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