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.

A088949 Composite numbers k such that (A006530(k) + A020639(k))/2 is an integer that divides k; special terms of A088948.

Table of values

n a(n)
1 4
2 8
3 9
4 16
5 25
6 27
7 32
8 49
9 64
10 81
11 105
12 121
13 125
14 128
15 169
16 231
17 243
18 256
19 289
20 315
21 343
22 361
23 512
24 525
25 529
26 625
27 627
28 693
29 729
30 735
31 841
32 897
33 935
34 945
35 961
36 1024
37 1155
38 1331
39 1369
40 1575
41 1581
42 1617
43 1681
44 1729
45 1849
46 1881
47 2048
48 2079
49 2187
50 2197
51 2205
52 2209

List of values

[4, 8, 9, 16, 25, 27, 32, 49, 64, 81, 105, 121, 125, 128, 169, 231, 243, 256, 289, 315, 343, 361, 512, 525, 529, 625, 627, 693, 729, 735, 841, 897, 935, 945, 961, 1024, 1155, 1331, 1369, 1575, 1581, 1617, 1681, 1729, 1849, 1881, 2048, 2079, 2187, 2197, 2205, 2209]

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

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