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.

A209018 Number of nX7 0..3 arrays with no element equal the average of immediate neighbors vertically above, diagonally above and left, and horizontally left of it.

Table of values

n a(n)
1 2916
2 20918008
3 148774643618
4 1057701934285612
5 7521858792951566188
6 53490209804089514438574
7 380386826513820237531618354
8 2705056288752965649168385141630
9 19236551636169391849856640820638184

List of values

[2916, 20918008, 148774643618, 1057701934285612, 7521858792951566188, 53490209804089514438574, 380386826513820237531618354, 2705056288752965649168385141630, 19236551636169391849856640820638184]

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

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