cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A069580 Number of noninvertible n X n matrices mod 4 (i.e., over the ring Z_4).

Table of values

n a(n)
1 2
2 160
3 176128
4 2973761536
5 790377061679104
6 3337070496489549070336
7 224673304169436873829314985984
8 241628003280411784073600553618302304256
9 4154447778684876644944282114016459737751307157504
10 1142419984262996237357582885893433282120743128964441021874176

List of values

[2, 160, 176128, 2973761536, 790377061679104, 3337070496489549070336, 224673304169436873829314985984, 241628003280411784073600553618302304256, 4154447778684876644944282114016459737751307157504, 1142419984262996237357582885893433282120743128964441021874176]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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