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.

A199911 Number of -n..n arrays x(0..3) of 4 elements with zero sum, and adjacent elements not equal modulo three (with -1 modulo 3 = 2).

Table of values

n a(n)
1 8
2 24
3 72
4 152
5 256
6 448
7 680
8 952
9 1384
10 1848
11 2368
12 3136
13 3912
14 4760
15 5960
16 7128
17 8384
18 10112
19 11752
20 13496
21 15848
22 18040
23 20352
24 23424
25 26248
26 29208
27 33096
28 36632
29 40320
30 45120
31 49448
32 53944
33 59752
34 64952
35 70336
36 77248
37 83400
38 89752
39 97864

List of values

[8, 24, 72, 152, 256, 448, 680, 952, 1384, 1848, 2368, 3136, 3912, 4760, 5960, 7128, 8384, 10112, 11752, 13496, 15848, 18040, 20352, 23424, 26248, 29208, 33096, 36632, 40320, 45120, 49448, 53944, 59752, 64952, 70336, 77248, 83400, 89752, 97864]