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

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

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

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

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