%N Triangle of the numbers of unique-valued sequences of all lengths (from 1 to 2n-1) consisting of unit matrices (="matrix units") of order n.
%C First entry of each row is obviously n^2 and the last entries of each row are the terms of A001761.
%H A. Blazhevski and P. Sokoloski, <a href="http://www.institutzamatematika.com/images/6/64/BB07.1.pdf">Conceptual Introduction to Unique-valued Sequences</a>, Proceedings of the III Congress of Mathematicians of Macedonia (2005), preprint.
%H Aleksandar Blazhevski - Cane, <a href="http://cane.roxr.com/Nauka/UVS/A114595.TXT">First 10 rows</a> [Broken link]
%e T(n,1) = a(n^2 - 2n) = n^2.
%Y Cf. A097635, A001761.
%A Aleksandar Blazhevski - Cane (CaneB(AT)MT.Net.Mk), Dec 12 2005