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

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

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

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

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