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.

A199910 Number of -n..n arrays x(0..2) of 3 elements with zero sum, and adjacent elements not equal modulo three (with -1 modulo 3 = 2).

Table of values

n a(n)
1 6
2 12
3 24
4 42
5 60
6 84
7 114
8 144
9 180
10 222
11 264
12 312
13 366
14 420
15 480
16 546
17 612
18 684
19 762
20 840
21 924
22 1014
23 1104
24 1200
25 1302
26 1404
27 1512
28 1626
29 1740
30 1860
31 1986
32 2112
33 2244
34 2382
35 2520
36 2664
37 2814
38 2964
39 3120
40 3282
41 3444
42 3612
43 3786
44 3960
45 4140
46 4326
47 4512

List of values

[6, 12, 24, 42, 60, 84, 114, 144, 180, 222, 264, 312, 366, 420, 480, 546, 612, 684, 762, 840, 924, 1014, 1104, 1200, 1302, 1404, 1512, 1626, 1740, 1860, 1986, 2112, 2244, 2382, 2520, 2664, 2814, 2964, 3120, 3282, 3444, 3612, 3786, 3960, 4140, 4326, 4512]