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.

A290467 Unitary half-Zumkeller numbers: numbers k whose unitary proper divisors can be partitioned into two disjoint sets whose sums are equal.

Table of values

n a(n)
1 6
2 12
3 20
4 30
5 42
6 56
7 60
8 66
9 70
10 72
11 78
12 84
13 90
14 102
15 114
16 120
17 138
18 150
19 168
20 174
21 180
22 186
23 210
24 220
25 222
26 240
27 246
28 252
29 258
30 272
31 280
32 282
33 294
34 318
35 330
36 354
37 360
38 364
39 366
40 390
41 402
42 420
43 426
44 438
45 440
46 462
47 474
48 498
49 510
50 520
51 532
52 534
53 546
54 560
55 570
56 582
57 606
58 618

List of values

[6, 12, 20, 30, 42, 56, 60, 66, 70, 72, 78, 84, 90, 102, 114, 120, 138, 150, 168, 174, 180, 186, 210, 220, 222, 240, 246, 252, 258, 272, 280, 282, 294, 318, 330, 354, 360, 364, 366, 390, 402, 420, 426, 438, 440, 462, 474, 498, 510, 520, 532, 534, 546, 560, 570, 582, 606, 618]

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

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