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.

A222837 Number of nX7 0..3 arrays with no element equal to another at a city block distance of exactly two, and new values 0..3 introduced in row major order.

Table of values

n a(n)
1 163
2 6144
3 5832
4 10584
5 22848
6 55296
7 138240
8 301056
9 642048
10 1382400
11 3022848
12 6690816
13 14816256
14 32741376
15 72244224
16 159258624
17 351111168
18 774297600
19 1707764736
20 3766818816
21 8308300800
22 18324658176
23 40416165888
24 89140107264

List of values

[163, 6144, 5832, 10584, 22848, 55296, 138240, 301056, 642048, 1382400, 3022848, 6690816, 14816256, 32741376, 72244224, 159258624, 351111168, 774297600, 1707764736, 3766818816, 8308300800, 18324658176, 40416165888, 89140107264]