A114595 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.

1, 4, 6, 4, 9, 24, 48, 60, 30, 16, 60, 192, 480, 840, 840, 336, 25, 120, 520, 1920, 5700, 12600, 18480, 15120, 5040, 36, 210, 1140, 5520, 22920, 78120, 206640, 393120, 483840, 332640, 95040

Offset: 1

Author

Aleksandar Blazhevski - Cane (CaneB(AT)MT.Net.Mk), Dec 12 2005

Keywords

• nonn
• tabl

Comments

First entry of each row is obviously n^2 and the last entries of each row are the terms of A001761.

Examples

			T(n,1) = a(n^2 - 2n) = n^2.
		

Links

• A. Blazhevski and P. Sokoloski, Conceptual Introduction to Unique-valued Sequences, Proceedings of the III Congress of Mathematicians of Macedonia (2005), preprint.
• Aleksandar Blazhevski - Cane, First 10 rows [Broken link]

Crossrefs

Cf. A097635, A001761.