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.

A199706 Number of -n..n arrays x(0..3) of 4 elements with zero sum and no two neighbors equal.

Table of values

n a(n)
1 8
2 52
3 168
4 380
5 724
6 1236
7 1940
8 2872
9 4068
10 5552
11 7360
12 9528
13 12080
14 15052
15 18480
16 22388
17 26812
18 31788
19 37340
20 43504
21 50316
22 57800
23 65992
24 74928
25 84632
26 95140
27 106488
28 118700
29 131812
30 145860
31 160868
32 176872
33 193908
34 212000
35 231184
36 251496

List of values

[8, 52, 168, 380, 724, 1236, 1940, 2872, 4068, 5552, 7360, 9528, 12080, 15052, 18480, 22388, 26812, 31788, 37340, 43504, 50316, 57800, 65992, 74928, 84632, 95140, 106488, 118700, 131812, 145860, 160868, 176872, 193908, 212000, 231184, 251496]