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.

A132446 The number of n x n crossword puzzles with at most one black square per row up to horizontal/vertical symmetry.

Table of values

n a(n)
3 1
4 2
5 3
6 4
7 10
8 24
9 71
10 322

List of values

[1, 2, 3, 4, 10, 24, 71, 322]