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.

A213989 Number of n X n 0..7 matrices whose square is also a 0..7 matrix.

Table of values

n	a(n)
1	3
2	148
3	40370
4	56599992
5	361204218672

List of values

[3, 148, 40370, 56599992, 361204218672]

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

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