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.

A195000 Number of lower triangles of a 4 X 4 0..n array with each element differing from all of its horizontal and vertical neighbors by one.

Table of values

n a(n)
1 2
2 80
3 248
4 458
5 672
6 888
7 1104
8 1320
9 1536
10 1752
11 1968
12 2184
13 2400
14 2616
15 2832
16 3048
17 3264
18 3480
19 3696
20 3912
21 4128
22 4344
23 4560
24 4776
25 4992
26 5208
27 5424
28 5640
29 5856
30 6072
31 6288
32 6504
33 6720
34 6936
35 7152
36 7368
37 7584
38 7800
39 8016
40 8232
41 8448
42 8664
43 8880
44 9096

List of values

[2, 80, 248, 458, 672, 888, 1104, 1320, 1536, 1752, 1968, 2184, 2400, 2616, 2832, 3048, 3264, 3480, 3696, 3912, 4128, 4344, 4560, 4776, 4992, 5208, 5424, 5640, 5856, 6072, 6288, 6504, 6720, 6936, 7152, 7368, 7584, 7800, 8016, 8232, 8448, 8664, 8880, 9096]