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.

A302961 Number of nX4 0..1 arrays with every element equal to 0, 1, 2, 3 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

Table of values

n a(n)
1 8
2 105
3 786
4 6206
5 49521
6 395493
7 3157171
8 25208524
9 201291251
10 1607313882
11 12834468946
12 102483891605
13 818339663167
14 6534489434899
15 52178280478900
16 416646642993447
17 3326948061363744
18 26565877137213190
19 212130102108362955

List of values

[8, 105, 786, 6206, 49521, 395493, 3157171, 25208524, 201291251, 1607313882, 12834468946, 102483891605, 818339663167, 6534489434899, 52178280478900, 416646642993447, 3326948061363744, 26565877137213190, 212130102108362955]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.