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

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

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

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

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