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.

A233728 Number of (n+1)X(3+1) 0..3 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 6 and no adjacent elements equal.

Table of values

n a(n)
1 556
2 3972
3 29816
4 233432
5 1851404
6 14802604
7 118695412
8 953471940
9 7663964828
10 61629254552
11 495650497344
12 3986689001988
13 32067041076200
14 257939925202452
15 2074814466960036
16 16689518674136900
17 134248084171273808

List of values

[556, 3972, 29816, 233432, 1851404, 14802604, 118695412, 953471940, 7663964828, 61629254552, 495650497344, 3986689001988, 32067041076200, 257939925202452, 2074814466960036, 16689518674136900, 134248084171273808]