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.

A234121 Number of (n+1)X(7+1) 0..2 arrays with every 2X2 subblock having the absolute values of all six edge and diagonal differences no larger than 1.

Table of values

n a(n)
1 313537
2 93113761
3 26937444801
4 7888454356625
5 2315408571668225
6 680845368964238145
7 200376051988817866625
8 58999673293833047076529
9 17376516489941449765539393
10 5118401705337856988983612385

List of values

[313537, 93113761, 26937444801, 7888454356625, 2315408571668225, 680845368964238145, 200376051988817866625, 58999673293833047076529, 17376516489941449765539393, 5118401705337856988983612385]

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

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