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.

A241323 Number of nX2 0..3 arrays with no element equal to fewer vertical neighbors than horizontal neighbors, with new values 0..3 introduced in row major order.

Table of values

n a(n)
1 1
2 8
3 85
4 1030
5 13011
6 165924
7 2121033
8 27129985
9 347071157
10 4440219758
11 56806066313
12 726751710350
13 9297746189765
14 118951351657555
15 1521812314158867
16 19469410910818078
17 249083253366686135
18 3186663809907191548

List of values

[1, 8, 85, 1030, 13011, 165924, 2121033, 27129985, 347071157, 4440219758, 56806066313, 726751710350, 9297746189765, 118951351657555, 1521812314158867, 19469410910818078, 249083253366686135, 3186663809907191548]

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

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