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

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

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

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

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