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

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

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

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

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