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

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

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

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

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