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.

A300469 Number of nX5 0..1 arrays with every element equal to 0, 1, 2 or 3 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

Table of values

n a(n)
1 16
2 401
3 5363
4 80914
5 1231578
6 18735889
7 284885784
8 4332278363
9 65881928079
10 1001882710812
11 15235864361246
12 231695322340487
13 3523444515242366
14 53581838868285278
15 814831465529877300
16 12391331299090081281

List of values

[16, 401, 5363, 80914, 1231578, 18735889, 284885784, 4332278363, 65881928079, 1001882710812, 15235864361246, 231695322340487, 3523444515242366, 53581838868285278, 814831465529877300, 12391331299090081281]

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

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