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