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

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

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

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

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