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.

A275923 Number of connected arrangements of n circles in the affine plane, in the sense that the union of the solid circles is a connected set.

Table of values

n a(n)
0 1
1 1
2 2
3 11
4 156
5 16756

List of values

[1, 1, 2, 11, 156, 16756]