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.

A280669 Number of n X 4 0..2 arrays with no element equal to more than one of its horizontal and antidiagonal neighbors and with new values introduced in order 0 sequentially upwards.

Table of values

n a(n)
1 11
2 338
3 10205
4 310365
5 9439606
6 287101721
7 8732086113
8 265582964074
9 8077601392565
10 245677069239189
11 7472171430204190
12 227263155064756577
13 6912119473224669225
14 210229395075140809474
15 6394044362928373953677

List of values

[11, 338, 10205, 310365, 9439606, 287101721, 8732086113, 265582964074, 8077601392565, 245677069239189, 7472171430204190, 227263155064756577, 6912119473224669225, 210229395075140809474, 6394044362928373953677]

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

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