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.

A268964 Number of n X n 0..2 arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling two not more than once.

Table of values

n a(n)
1 3
2 60
3 2016
4 136080
5 18852912
6 5712070032
7 3870355944960
8 5963413766987592
9 21098726553552173712
10 172587783760354579099176
11 3279749300107885644432555744
12 145303202175464965696103410891992

List of values

[3, 60, 2016, 136080, 18852912, 5712070032, 3870355944960, 5963413766987592, 21098726553552173712, 172587783760354579099176, 3279749300107885644432555744, 145303202175464965696103410891992]

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

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