(0 13 9 7 4)(1 19 17 15 5)(2 6 3)(8 12 10)(11 16 14)(18 21 20)
ALLOWS (11/8)-SEQUENCE
1: (0 3 9)

(0 7 4)(1 19 17 15 5)(2 6 3 13 9)(8 12 10)(11 16 14)(18 21 20)
2: (1 15 5)

(0 7 4)(1)(2 6 3 13 9)(5)(8 12 10)(11 16 14)(15 19 17)(18 21 20)
3: (3 13 6)

(0 7 4)(1)(2 6 9)(3)(5)(8 12 10)(11 16 14)(13)(15 19 17)(18 21 20)
4: (11 16 14)

(0 7 4)(1)(2 6 9)(3)(5)(8 12 10)(11)(13)(14)(15 19 17)(16)(18 21 20)