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

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

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

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

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