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.

A116021 phi(n) plus the n-th prime gives a square.

Table of values

n a(n)
1 2
2 4
3 14
4 27
5 30
6 65
7 80
8 113
9 174
10 332
11 483
12 498
13 547
14 684
15 734
16 737
17 761
18 944
19 1693
20 1855
21 2204
22 3358
23 3461
24 3647
25 3787
26 3908
27 4180
28 6144
29 6915
30 7638
31 7763
32 10249
33 10676
34 12235
35 13359
36 14038
37 16002
38 19736
39 21148
40 23392
41 23899
42 24295
43 24663

List of values

[2, 4, 14, 27, 30, 65, 80, 113, 174, 332, 483, 498, 547, 684, 734, 737, 761, 944, 1693, 1855, 2204, 3358, 3461, 3647, 3787, 3908, 4180, 6144, 6915, 7638, 7763, 10249, 10676, 12235, 13359, 14038, 16002, 19736, 21148, 23392, 23899, 24295, 24663]

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

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