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.

A287250 Number of inequivalent n X n matrices over GF(9) under action of dihedral group of the square D_4, with one-ninth each of 1's, 2's, 3's, 4's, 5's, 6's, 7's, 8's and 9's (ordered occurrences rounded up/down if n^2 != 0 mod 9).

Table of values

n a(n)
0 1
1 1
2 1
3 45360
4 20432427120
5 1731557619792000000
6 17601269260059379482191694720
7 11370476506038919496334983007474778275840
8 944848320304251231447932170156537415535539635814400000
9 6641336088298446224006555306105706090482482272285249518936232000000000

List of values

[1, 1, 1, 45360, 20432427120, 1731557619792000000, 17601269260059379482191694720, 11370476506038919496334983007474778275840, 944848320304251231447932170156537415535539635814400000, 6641336088298446224006555306105706090482482272285249518936232000000000]