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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.

A184375 1/3 the number of (n+1)X9 0..2 arrays with every 2X2 subblock having at least two equal elements connected horizontally or vertically.

Table of values

n a(n)
1 22064643
2 90163722073
3 360402692568245
4 1444622701339019869
5 5788675585887326994869
6 23196517518911246631354055
7 92953139774330929595592449437
8 372482322079037724494019844619359

List of values

[22064643, 90163722073, 360402692568245, 1444622701339019869, 5788675585887326994869, 23196517518911246631354055, 92953139774330929595592449437, 372482322079037724494019844619359]

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

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