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.

A365206 Centered octachoral numbers.

Table of values

n a(n)
1 1
2 49
3 337
4 1249
5 3361
6 7441
7 14449
8 25537
9 42049
10 65521
11 97681
12 140449
13 195937
14 266449
15 354481
16 462721
17 594049
18 751537
19 938449
20 1158241
21 1414561
22 1711249
23 2052337
24 2442049
25 2884801
26 3385201
27 3948049
28 4578337
29 5281249
30 6062161
31 6926641
32 7880449
33 8929537

List of values

[1, 49, 337, 1249, 3361, 7441, 14449, 25537, 42049, 65521, 97681, 140449, 195937, 266449, 354481, 462721, 594049, 751537, 938449, 1158241, 1414561, 1711249, 2052337, 2442049, 2884801, 3385201, 3948049, 4578337, 5281249, 6062161, 6926641, 7880449, 8929537]