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.

A202885 Number of nX4 0..2 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor.

Table of values

n a(n)
1 22
2 1849
3 109119
4 6092872
5 348151747
6 19914296913
7 1137589582096
8 64992189188797
9 3713325091122745
10 212156302986486914
11 12121270553957772787
12 692534079965581463725
13 39567093279061401381682
14 2260617527909089482464661

List of values

[22, 1849, 109119, 6092872, 348151747, 19914296913, 1137589582096, 64992189188797, 3713325091122745, 212156302986486914, 12121270553957772787, 692534079965581463725, 39567093279061401381682, 2260617527909089482464661]

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

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