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

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

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

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

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