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.

A301998 Number of nX7 0..1 arrays with every element equal to 1, 2 or 4 horizontally or antidiagonally adjacent elements, with upper left element zero.

Table of values

n a(n)
1 8
2 128
3 1108
4 10982
5 122232
6 1366374
7 15243860
8 169636124
9 1884309898
10 20919022400
11 232254936138
12 2579000358404
13 28639373845122
14 318037976285038
15 3531770886607536
16 39219734913406306
17 435528277377832336

List of values

[8, 128, 1108, 10982, 122232, 1366374, 15243860, 169636124, 1884309898, 20919022400, 232254936138, 2579000358404, 28639373845122, 318037976285038, 3531770886607536, 39219734913406306, 435528277377832336]