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.

A208049 Number of nX7 0..3 arrays with new values 0..3 introduced in row major order and no element equal to any horizontal, vertical or antidiagonal neighbor (colorings ignoring permutations of colors).

Table of values

n a(n)
1 122
2 2048
3 41932
4 931968
5 21472544
6 502504448
7 11838995200
8 279733684992
9 6617787903744
10 156641740131072
11 3708483510235904
12 87806041737925888
13 2079067090247547648
14 49228778299543155968
15 1165660962446546688768

List of values

[122, 2048, 41932, 931968, 21472544, 502504448, 11838995200, 279733684992, 6617787903744, 156641740131072, 3708483510235904, 87806041737925888, 2079067090247547648, 49228778299543155968, 1165660962446546688768]