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.

A203096 Number of nX3 0..3 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor.

Table of values

n a(n)
1 16
2 1080
3 48552
4 2029744
5 87531478
6 3790420430
7 163621176194
8 7062389921398
9 304924052795176
10 13165093367601574
11 568388578666214512
12 24539653368720439680
13 1059478958509288348530
14 45742091639005479963848

List of values

[16, 1080, 48552, 2029744, 87531478, 3790420430, 163621176194, 7062389921398, 304924052795176, 13165093367601574, 568388578666214512, 24539653368720439680, 1059478958509288348530, 45742091639005479963848]

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

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