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.

A228564 Largest odd divisor of n^2 + 1.

Table of values

n a(n)
0 1
1 1
2 5
3 5
4 17
5 13
6 37
7 25
8 65
9 41
10 101
11 61
12 145
13 85
14 197
15 113
16 257
17 145
18 325
19 181
20 401
21 221
22 485
23 265
24 577
25 313
26 677
27 365
28 785
29 421
30 901
31 481
32 1025
33 545
34 1157
35 613
36 1297
37 685
38 1445
39 761
40 1601
41 841
42 1765
43 925
44 1937
45 1013
46 2117
47 1105
48 2305
49 1201
50 2501
51 1301
52 2705

List of values

[1, 1, 5, 5, 17, 13, 37, 25, 65, 41, 101, 61, 145, 85, 197, 113, 257, 145, 325, 181, 401, 221, 485, 265, 577, 313, 677, 365, 785, 421, 901, 481, 1025, 545, 1157, 613, 1297, 685, 1445, 761, 1601, 841, 1765, 925, 1937, 1013, 2117, 1105, 2305, 1201, 2501, 1301, 2705]