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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.

A230065 Number of nX5 0..2 arrays x(i,j) with each element diagonally or antidiagonally next to at least one element with value 2-x(i,j).

Table of values

n a(n)
1 0
2 225
3 3645
4 281961
5 14082255
6 793041921
7 43142680647
8 2369158188849
9 129763431348327
10 7112485499815809
11 389766441753947727
12 21360486977871231969
13 1170607520117723187375
14 64152453401987618058561

List of values

[0, 225, 3645, 281961, 14082255, 793041921, 43142680647, 2369158188849, 129763431348327, 7112485499815809, 389766441753947727, 21360486977871231969, 1170607520117723187375, 64152453401987618058561]

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

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