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.

A257481 Consider a hole-less cluster of n circles in the hexagonal lattice packing of circles; a(n) is the maximal number of circles that touch 6 circles.

Table of values

n a(n)
1 0
2 0
3 0
4 0
5 0
6 0
7 1
8 1
9 1
10 2
11 2
12 3
13 3
14 4

List of values

[0, 0, 0, 0, 0, 0, 1, 1, 1, 2, 2, 3, 3, 4]