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.

A269196 Number of n X 3 0..3 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling three no more than once.

Table of values

n a(n)
1 60
2 1284
3 25572
4 471492
5 8314020
6 142233732
7 2380537188
8 39186271044
9 636703584804
10 10237337586180
11 163189207436004
12 2582623154662596
13 40622651914004388
14 635603382950474628
15 9899530341266770020

List of values

[60, 1284, 25572, 471492, 8314020, 142233732, 2380537188, 39186271044, 636703584804, 10237337586180, 163189207436004, 2582623154662596, 40622651914004388, 635603382950474628, 9899530341266770020]

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

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