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.

A204626 Number of (n+1)X5 0..2 arrays with every 2X2 subblock having unequal diagonal elements or unequal antidiagonal elements, and new values 0..2 introduced in row major order.

Table of values

n a(n)
1 6144
2 933462
3 141832254
4 21550390395
5 3274427479938
6 497525810748759
7 75595484720747496
8 11486192649538372653
9 1745244733464500021670
10 265177441526573391694167
11 40291813604266663731304284

List of values

[6144, 933462, 141832254, 21550390395, 3274427479938, 497525810748759, 75595484720747496, 11486192649538372653, 1745244733464500021670, 265177441526573391694167, 40291813604266663731304284]

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

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