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

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

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

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

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