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

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

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

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

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