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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.

A078723 a(n) = prime(n*(n+1)/2 + n).

Table of values

n a(n)
1 3
2 11
3 23
4 43
5 71
6 103
7 149
8 193
9 251
10 313
11 389
12 463
13 569
14 653
15 761
16 881
17 1013
18 1129
19 1289
20 1451
21 1601
22 1777
23 1979
24 2143
25 2357
26 2591
27 2789
28 3023
29 3301
30 3539
31 3793
32 4057
33 4349
34 4651
35 4969
36 5297
37 5639
38 5927
39 6299
40 6673
41 7013
42 7459
43 7823
44 8237
45 8677
46 9067
47 9479

List of values

[3, 11, 23, 43, 71, 103, 149, 193, 251, 313, 389, 463, 569, 653, 761, 881, 1013, 1129, 1289, 1451, 1601, 1777, 1979, 2143, 2357, 2591, 2789, 3023, 3301, 3539, 3793, 4057, 4349, 4651, 4969, 5297, 5639, 5927, 6299, 6673, 7013, 7459, 7823, 8237, 8677, 9067, 9479]

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

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