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.

A213479 Number of (w,x,y) with all terms in {0,...,n} and |w-x|+|x-y| = w+x+y.

Table of values

n a(n)
0 1
1 4
2 11
3 18
4 30
5 41
6 58
7 73
8 95
9 114
10 141
11 164
12 196
13 223
14 260
15 291
16 333
17 368
18 415
19 454
20 506
21 549
22 606
23 653
24 715
25 766
26 833
27 888
28 960
29 1019
30 1096
31 1159
32 1241
33 1308
34 1395
35 1466
36 1558
37 1633
38 1730
39 1809
40 1911
41 1994
42 2101
43 2188
44 2300
45 2391
46 2508
47 2603
48 2725
49 2824

List of values

[1, 4, 11, 18, 30, 41, 58, 73, 95, 114, 141, 164, 196, 223, 260, 291, 333, 368, 415, 454, 506, 549, 606, 653, 715, 766, 833, 888, 960, 1019, 1096, 1159, 1241, 1308, 1395, 1466, 1558, 1633, 1730, 1809, 1911, 1994, 2101, 2188, 2300, 2391, 2508, 2603, 2725, 2824]