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.

A380749 a(n) is the number of positive integer solutions of n*x*y*z*w = (x + n) * (y + n) * (z + n) * (w + n), x <= y <= z <= w.

Table of values

n a(n)
1 0
2 374
3 450
4 375
5 301
6 478
7 228
8 359
9 238
10 515
11 206
12 879
13 259
14 506
15 780
16 349
17 284
18 762
19 135
20 916
21 905
22 493
23 99
24 1189
25 423
26 306
27 318
28 869
29 70
30 1879
31 97
32 311
33 714
34 250
35 778
36 1300
37 109
38 258
39 483
40 1334
41 71
42 1987
43 93
44 545
45 1451
46 303
47 64
48 1156
49 202
50 504
51 481
52 822
53 71

List of values

[0, 374, 450, 375, 301, 478, 228, 359, 238, 515, 206, 879, 259, 506, 780, 349, 284, 762, 135, 916, 905, 493, 99, 1189, 423, 306, 318, 869, 70, 1879, 97, 311, 714, 250, 778, 1300, 109, 258, 483, 1334, 71, 1987, 93, 545, 1451, 303, 64, 1156, 202, 504, 481, 822, 71]