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.

A269211 Number of nX5 0..3 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling three exactly once.

Table of values

n a(n)
1 432
2 49536
3 4744704
4 394072704
5 30541426560
6 2267772823680
7 163535201141376
8 11544796423498368
9 801929439109544064
10 54999867607734747264
11 3733606080456064161408
12 251316480848067823807104

List of values

[432, 49536, 4744704, 394072704, 30541426560, 2267772823680, 163535201141376, 11544796423498368, 801929439109544064, 54999867607734747264, 3733606080456064161408, 251316480848067823807104]

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

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