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.

A274221 List of quadruples: 3*n*(3*n-1), 3*n*(3*n+1), (3*n+1)^2, (3*n+2)^2.

Table of values

n a(n)
0 0
1 0
2 1
3 4
4 6
5 12
6 16
7 25
8 30
9 42
10 49
11 64
12 72
13 90
14 100
15 121
16 132
17 156
18 169
19 196
20 210
21 240
22 256
23 289
24 306
25 342
26 361
27 400
28 420
29 462
30 484
31 529
32 552
33 600
34 625
35 676
36 702
37 756
38 784
39 841
40 870
41 930
42 961
43 1024
44 1056
45 1122
46 1156
47 1225
48 1260
49 1332
50 1369
51 1444
52 1482

List of values

[0, 0, 1, 4, 6, 12, 16, 25, 30, 42, 49, 64, 72, 90, 100, 121, 132, 156, 169, 196, 210, 240, 256, 289, 306, 342, 361, 400, 420, 462, 484, 529, 552, 600, 625, 676, 702, 756, 784, 841, 870, 930, 961, 1024, 1056, 1122, 1156, 1225, 1260, 1332, 1369, 1444, 1482]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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