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.

A265935 Number of 7Xn 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 78125
2 157071768
3 152267520
4 225444912
5 309447168
6 579039920
7 1135042936
8 2998567088
9 8724089616
10 18964065400
11 44566825520
12 107404139812
13 337477736424
14 721835834136
15 1878102206024
16 4325671914740
17 13771113959216
18 29460813516752

List of values

[78125, 157071768, 152267520, 225444912, 309447168, 579039920, 1135042936, 2998567088, 8724089616, 18964065400, 44566825520, 107404139812, 337477736424, 721835834136, 1878102206024, 4325671914740, 13771113959216, 29460813516752]

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

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