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.

A212566 Number of (w,x,y,z) with all terms in {1,...,n} and w+x=3y+3z.

Table of values

n a(n)
0 0
1 0
2 0
3 1
4 3
5 9
6 16
7 26
8 44
9 63
10 87
11 123
12 160
13 204
14 264
15 325
16 395
17 485
18 576
19 678
20 804
21 931
22 1071
23 1239
24 1408
25 1592
26 1808
27 2025
28 2259
29 2529
30 2800
31 3090
32 3420
33 3751
34 4103
35 4499
36 4896
37 5316
38 5784
39 6253
40 6747
41 7293
42 7840
43 8414
44 9044
45 9675
46 10335
47 11055
48 11776

List of values

[0, 0, 0, 1, 3, 9, 16, 26, 44, 63, 87, 123, 160, 204, 264, 325, 395, 485, 576, 678, 804, 931, 1071, 1239, 1408, 1592, 1808, 2025, 2259, 2529, 2800, 3090, 3420, 3751, 4103, 4499, 4896, 5316, 5784, 6253, 6747, 7293, 7840, 8414, 9044, 9675, 10335, 11055, 11776]