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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.

A337111 Number of length four 1..n vectors that contain their geometric mean.

Table of values

n a(n)
1 1
2 2
3 3
4 16
5 17
6 18
7 19
8 56
9 105
10 106
11 107
12 144
13 145
14 146
15 147
16 208
17 209
18 306
19 307
20 320
21 321
22 322
23 323
24 432
25 529
26 530
27 723
28 736
29 737
30 738
31 739
32 968
33 969
34 970
35 971
36 1176
37 1177
38 1178
39 1179
40 1288
41 1289
42 1290
43 1291
44 1304
45 1401
46 1402
47 1403
48 1608
49 1777
50 2018
51 2019
52 2032

List of values

[1, 2, 3, 16, 17, 18, 19, 56, 105, 106, 107, 144, 145, 146, 147, 208, 209, 306, 307, 320, 321, 322, 323, 432, 529, 530, 723, 736, 737, 738, 739, 968, 969, 970, 971, 1176, 1177, 1178, 1179, 1288, 1289, 1290, 1291, 1304, 1401, 1402, 1403, 1608, 1777, 2018, 2019, 2032]

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

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