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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.

A110208 1 + sum of first n semiprimes.

Table of values

n a(n)
0 1
1 5
2 11
3 20
4 30
5 44
6 59
7 80
8 102
9 127
10 153
11 186
12 220
13 255
14 293
15 332
16 378
17 427
18 478
19 533
20 590
21 648
22 710
23 775
24 844
25 918
26 995
27 1077
28 1162
29 1248
30 1335
31 1426
32 1519
33 1613
34 1708
35 1814
36 1925
37 2040
38 2158
39 2277
40 2398
41 2520
42 2643
43 2772
44 2905
45 3039
46 3180
47 3322
48 3465

List of values

[1, 5, 11, 20, 30, 44, 59, 80, 102, 127, 153, 186, 220, 255, 293, 332, 378, 427, 478, 533, 590, 648, 710, 775, 844, 918, 995, 1077, 1162, 1248, 1335, 1426, 1519, 1613, 1708, 1814, 1925, 2040, 2158, 2277, 2398, 2520, 2643, 2772, 2905, 3039, 3180, 3322, 3465]

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

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