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.

A238283 Number of (n+1) X (3+1) 0..3 arrays with no element greater than all horizontal neighbors or less than all vertical neighbors.

Table of values

n a(n)
1 50
2 1844
3 42084
4 737366
5 12926271
6 245920800
7 4810332239
8 92790334588
9 1767175335274
10 33631393265283
11 642245437813719
12 12282485000914102
13 234784249649799771
14 4485361687341554225
15 85682498512887615932

List of values

[50, 1844, 42084, 737366, 12926271, 245920800, 4810332239, 92790334588, 1767175335274, 33631393265283, 642245437813719, 12282485000914102, 234784249649799771, 4485361687341554225, 85682498512887615932]

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

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