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

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

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

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

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