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.

A258218 Number of length (4*n-1) bit patterns with 2*n ones that form circulant core of Hadamard matrices of size 4*n.

Table of values

n a(n)
1 3
2 14
3 22
4 30
5 38
6 46
7 0
8 248
9 70
10 0
11 344
12 94

List of values

[3, 14, 22, 30, 38, 46, 0, 248, 70, 0, 344, 94]