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

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

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

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

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