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.

A273358 Numbers n such that the decimal number concat(3,n) is a square.

Table of values

n a(n)
1 6
2 24
3 61
4 136
5 249
6 364
7 481
8 600
9 721
10 844
11 969
12 1329
13 1684
14 2041
15 2400
16 2761
17 3124
18 3489
19 3856
20 4225
21 4596
22 4969
23 5344
24 5721
25 6100
26 6481
27 6864
28 7249
29 7636
30 8025
31 8416
32 8809
33 9204
34 9601
35 10249
36 11364
37 12481
38 13600
39 14721
40 15844
41 16969
42 18096

List of values

[6, 24, 61, 136, 249, 364, 481, 600, 721, 844, 969, 1329, 1684, 2041, 2400, 2761, 3124, 3489, 3856, 4225, 4596, 4969, 5344, 5721, 6100, 6481, 6864, 7249, 7636, 8025, 8416, 8809, 9204, 9601, 10249, 11364, 12481, 13600, 14721, 15844, 16969, 18096]