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

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

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

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

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