Geodesic
The $p$-adic valuations of sequences counting alternating sign matrices
Journal of integer sequences, Tome 12 (2009) no. 3.

Voir la notice de l'article provenant de la source Electronic Library of Mathematics

Summary: The $p$-adic valuations of a sequence of integers counting alternating sign symmetric matrices are examined for $p = 2$ and $p = 3$. Symmetry properties of their graphs produce a new proof of the result that characterizes the indices that yield an odd number of matrices.
Classification : 05A10, 11B75, 11Y55
Keywords: alternating sign matrices, jacobsthal numbers, valuations 
@article{JIS_2009__12_3_a3,
     author = {Sun, Xinyu and Moll, Victor H.},
     title = {The $p$-adic valuations of sequences counting alternating sign matrices},
     journal = {Journal of integer sequences},
     publisher = {mathdoc},
     volume = {12},
     number = {3},
     year = {2009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JIS_2009__12_3_a3/}
}
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Sun, Xinyu; Moll, Victor H. The $p$-adic valuations of sequences counting alternating sign matrices. Journal of integer sequences, Tome 12 (2009) no. 3. http://geodesic.mathdoc.fr/item/JIS_2009__12_3_a3/