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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.

A263365 Number of (n+1)X(n+1) 0..2 arrays with each row and column divisible by 7, read as a base-3 number with top and left being the most significant digits.

Table of values

n a(n)
1 1
2 2
3 82
4 24711
5 84790557
6 2535097569590

List of values

[1, 2, 82, 24711, 84790557, 2535097569590]

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

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