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.

A213399 Number of (w,x,y) with all terms in {0,...,n} and max(|w-x|,|x-y|) = x.

Table of values

n a(n)
0 1
1 4
2 14
3 23
4 43
5 58
6 88
7 109
8 149
9 176
10 226
11 259
12 319
13 358
14 428
15 473
16 553
17 604
18 694
19 751
20 851
21 914
22 1024
23 1093
24 1213
25 1288
26 1418
27 1499
28 1639
29 1726
30 1876
31 1969
32 2129
33 2228
34 2398
35 2503
36 2683
37 2794
38 2984
39 3101
40 3301
41 3424
42 3634
43 3763
44 3983
45 4118

List of values

[1, 4, 14, 23, 43, 58, 88, 109, 149, 176, 226, 259, 319, 358, 428, 473, 553, 604, 694, 751, 851, 914, 1024, 1093, 1213, 1288, 1418, 1499, 1639, 1726, 1876, 1969, 2129, 2228, 2398, 2503, 2683, 2794, 2984, 3101, 3301, 3424, 3634, 3763, 3983, 4118]