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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.

A119379 Untouchable semiprimes: semiprimes which are not the sum of the aliquot parts of any number.

Table of values

n a(n)
1 146
2 206
3 262
4 326
5 562
6 626
7 718
8 766
9 802
10 818
11 898
12 926
13 934
14 982
15 1046
16 1186
17 1318
18 1346
19 1418
20 1438
21 1522
22 1538
23 1642
24 1718
25 1766
26 1774
27 1822
28 1838
29 1894
30 2062
31 2078
32 2098
33 2174
34 2218
35 2258
36 2302
37 2306
38 2446
39 2498
40 2518
41 2602
42 2606
43 2614
44 2642
45 2762

List of values

[146, 206, 262, 326, 562, 626, 718, 766, 802, 818, 898, 926, 934, 982, 1046, 1186, 1318, 1346, 1418, 1438, 1522, 1538, 1642, 1718, 1766, 1774, 1822, 1838, 1894, 2062, 2078, 2098, 2174, 2218, 2258, 2302, 2306, 2446, 2498, 2518, 2602, 2606, 2614, 2642, 2762]

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

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