@article{JIS_2011__14_1_a3,
     author = {Dym\'a\v{c}ek, Wayne M. and Lambert, Isaac},
     title = {Permutations avoiding runs of $i, i+1, i+2$ or $i, i-1, i-2$},
     journal = {Journal of integer sequences},
     publisher = {mathdoc},
     volume = {14},
     number = {1},
     year = {2011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JIS_2011__14_1_a3/}
}