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.

A265970 Number of nX5 0..4 arrays with the absolute differences of each element with its with horizontal and vertical neighbors unique.

Table of values

n a(n)
1 1252
2 38096
3 89776
4 230784
5 631264
6 1820904
7 5120120
8 14529352
9 40869008
10 116148576
11 330124104
12 935364856
13 2641623616
14 7497789512
15 21321031376
16 60505118208
17 171246024504
18 485965902816
19 1381610459280
20 3923852199568

List of values

[1252, 38096, 89776, 230784, 631264, 1820904, 5120120, 14529352, 40869008, 116148576, 330124104, 935364856, 2641623616, 7497789512, 21321031376, 60505118208, 171246024504, 485965902816, 1381610459280, 3923852199568]

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

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