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

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

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

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

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