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.

A030467 Numbers k such that k^2 is a concatenation of two successive numbers.

Table of values

n a(n)
1 428
2 573
3 727
4 846
5 7810
6 36365
7 63636
8 326734
9 673267
10 4545454
11 5454547
12 47058823
13 52941178
14 331983807
15 332667334
16 384615386
17 422892898
18 475524477
19 524475524
20 577107103
21 615384615
22 667332667
23 668016194
24 719964246
25 758241758
26 804511280
27 810873337
28 857142859

List of values

[428, 573, 727, 846, 7810, 36365, 63636, 326734, 673267, 4545454, 5454547, 47058823, 52941178, 331983807, 332667334, 384615386, 422892898, 475524477, 524475524, 577107103, 615384615, 667332667, 668016194, 719964246, 758241758, 804511280, 810873337, 857142859]