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

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

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

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

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