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

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

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

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

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