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.

A115426 Numbers k such that the concatenation of k with k+2 gives a square.

Table of values

n a(n)
1 7874
2 8119
3 69476962
4 98010199
5 108746354942
6 449212110367
7 544978035127
8 870501316279
9 998001001999
10 1428394731903223
11 1499870932756487
12 1806498025502498
13 1830668275445687
14 1911470478658759
15 2255786189655202

List of values

[7874, 8119, 69476962, 98010199, 108746354942, 449212110367, 544978035127, 870501316279, 998001001999, 1428394731903223, 1499870932756487, 1806498025502498, 1830668275445687, 1911470478658759, 2255786189655202]

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

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