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.

A262422 Number of (3+1) X (n+1) 0..1 arrays with each row divisible by 3 and column not divisible by 3, read as a binary number with top and left being the most significant bits.

Table of values

n a(n)
1 10
2 12
3 270
4 1260
5 15310
6 124572
7 1299070
8 12380940
9 124921710
10 1235566332
11 12379963870
12 123483616620
13 1235387708110
14 12346379507292
15 123476688644670
16 1234585890852300
17 12346166930494510
18 123457247499499452

List of values

[10, 12, 270, 1260, 15310, 124572, 1299070, 12380940, 124921710, 1235566332, 12379963870, 123483616620, 1235387708110, 12346379507292, 123476688644670, 1234585890852300, 12346166930494510, 123457247499499452]

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

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