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.

A057103 Triangle of congrua: T(n,k) = 4*n*k(n^2-k^2) with n>k>0 and starting at T(2,1) = 24. A055096(n)^2 + a(n) is a square, as is A055096(n)^2 - a(n).

Table of values

n a(n)
2 24
3 96
4 120
5 240
6 384
7 336
8 480
9 840
10 960
11 720
12 840
13 1536
14 1944
15 1920
16 1320
17 1344
18 2520
19 3360
20 3696
21 3360
22 2184
23 2016
24 3840
25 5280
26 6144
27 6240
28 5376
29 3360
30 2880
31 5544
32 7776
33 9360
34 10080
35 9720
36 8064
37 4896
38 3960
39 7680
40 10920
41 13440
42 15000
43 15360
44 14280
45 11520
46 6840

List of values

[24, 96, 120, 240, 384, 336, 480, 840, 960, 720, 840, 1536, 1944, 1920, 1320, 1344, 2520, 3360, 3696, 3360, 2184, 2016, 3840, 5280, 6144, 6240, 5376, 3360, 2880, 5544, 7776, 9360, 10080, 9720, 8064, 4896, 3960, 7680, 10920, 13440, 15000, 15360, 14280, 11520, 6840]