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

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

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

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

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