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

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

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

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

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