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

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

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

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

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