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

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

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

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

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