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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.

A265928 T(n,k)=Number of nXk 0..4 arrays with the absolute differences of each element with its with horizontal and antidiagonal neighbors unique.

Table of values

n a(n)
1 5
2 25
3 25
4 92
5 340
6 125
7 340
8 1740
9 4616
10 625
11 1252
12 9016
13 17936
14 62696
15 3125
16 4616
17 44916
18 72772
19 174000
20 851496
21 15625
22 17012
23 223788
24 273616
25 542940
26 1671744
27 11564952
28 78125
29 62696
30 1119424
31 1042020
32 1546496
33 4044156
34 15962560
35 157071768

List of values

[5, 25, 25, 92, 340, 125, 340, 1740, 4616, 625, 1252, 9016, 17936, 62696, 3125, 4616, 44916, 72772, 174000, 851496, 15625, 17012, 223788, 273616, 542940, 1671744, 11564952, 78125, 62696, 1119424, 1042020, 1546496, 4044156, 15962560, 157071768]

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

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