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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.

A351533 Odd numbers k that are multiples of 3 and for which sigma(k) is congruent to 2 modulo 4.

Table of values

n a(n)
1 45
2 117
3 153
4 261
5 333
6 369
7 405
8 477
9 549
10 657
11 801
12 873
13 909
14 981
15 1017
16 1053
17 1233
18 1341
19 1377
20 1413
21 1557
22 1629
23 1737
24 1773
25 2061
26 2097
27 2169
28 2205
29 2313
30 2349
31 2421
32 2493
33 2529
34 2637
35 2817
36 2853
37 2925
38 2997
39 3033
40 3141
41 3177
42 3321
43 3357
44 3501
45 3573
46 3609
47 3645
48 3681
49 3789
50 3825
51 3897
52 4041
53 4113
54 4149
55 4293

List of values

[45, 117, 153, 261, 333, 369, 405, 477, 549, 657, 801, 873, 909, 981, 1017, 1053, 1233, 1341, 1377, 1413, 1557, 1629, 1737, 1773, 2061, 2097, 2169, 2205, 2313, 2349, 2421, 2493, 2529, 2637, 2817, 2853, 2925, 2997, 3033, 3141, 3177, 3321, 3357, 3501, 3573, 3609, 3645, 3681, 3789, 3825, 3897, 4041, 4113, 4149, 4293]

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

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