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

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

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

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

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