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.

A209522 Number of nX3 0..7 arrays with every 2X2 subblock containing exactly one value repeat, and new values 0..7 introduced in row major order.

Table of values

n a(n)
1 5
2 57
3 2027
4 107693
5 7700397
6 687132348
7 71519658191
8 8190834795146
9 990354435624550
10 123286203872982432
11 15583473550178836892
12 1985385176761852694734
13 253978177065210815069458

List of values

[5, 57, 2027, 107693, 7700397, 687132348, 71519658191, 8190834795146, 990354435624550, 123286203872982432, 15583473550178836892, 1985385176761852694734, 253978177065210815069458]

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

Content is available under The OEIS End-User License Agreement.