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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.

A269274 Number of nX6 0..3 arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling three exactly once.

Table of values

n a(n)
1 1620
2 1104264
3 474819408
4 174924572760
5 59587625651904
6 19356924219624936
7 6090616046325570480
8 1872977567099580289656
9 566116324214731470647712
10 168820920854627863029497352
11 49802534018235803452666079376

List of values

[1620, 1104264, 474819408, 174924572760, 59587625651904, 19356924219624936, 6090616046325570480, 1872977567099580289656, 566116324214731470647712, 168820920854627863029497352, 49802534018235803452666079376]

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

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