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I. Honkala, T. Laihonen and S. Ranto, On Strongly Identifying Codes, Discrete Math. 254 (2002), no. 1-3, 191-205; http://www.tucs.fi/Publications/techreports/TR417.php.
Table of n, a(n) for n=2..17.
Sequence in context: A122248 A024403 A129230 * A071404 A074133 A215909
Adjacent sequences: A203564 A203565 A203566 * A203568 A203569 A203570
N. J. A. Sloane, Jan 16 2012