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.

A281602 Number of nX5 0..2 arrays with no element equal to more than one of its horizontal, diagonal or antidiagonal neighbors and with new values introduced in order 0 sequentially upwards.

Table of values

n a(n)
1 30
2 442
3 8180
4 167545
5 3401430
6 69506779
7 1421127262
8 29066686772
9 594539026170
10 12161158312943
11 248754881654232
12 5088256100638530
13 104079805217582244
14 2128942973242332029
15 43547336604707609360
16 890756851949851865902

List of values

[30, 442, 8180, 167545, 3401430, 69506779, 1421127262, 29066686772, 594539026170, 12161158312943, 248754881654232, 5088256100638530, 104079805217582244, 2128942973242332029, 43547336604707609360, 890756851949851865902]

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

Content is available under The OEIS End-User License Agreement.