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.

A211621 Number of ordered triples (w,x,y) with all terms in {-n,...-1,1,...,n} and w+2x+3y>0.

Table of values

n a(n)
0 0
1 3
2 29
3 103
4 247
5 484
6 843
7 1342
8 2008
9 2866
10 3938
11 5247
12 6822
13 8681
14 10851
15 13357
16 16221
17 19466
18 23121
19 27204
20 31742
21 36760
22 42280
23 48325
24 54924
25 62095
26 69865
27 78259
28 87299
29 97008
30 107415
31 118538
32 130404
33 143038
34 156462
35 170699
36 185778
37 201717
38 218543

List of values

[0, 3, 29, 103, 247, 484, 843, 1342, 2008, 2866, 3938, 5247, 6822, 8681, 10851, 13357, 16221, 19466, 23121, 27204, 31742, 36760, 42280, 48325, 54924, 62095, 69865, 78259, 87299, 97008, 107415, 118538, 130404, 143038, 156462, 170699, 185778, 201717, 218543]