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

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

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

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

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