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.

A350918 Numbers k = x.y which when split into two parts x and y of equal length, added and squared result in the same number k, '.' means concatenation, and the second part y starts with 0.

Table of values

n a(n)
1 9801
2 998001
3 99980001
4 9048004641
5 9999800001
6 923594037444
7 989444005264
8 999998000001
9 7901234409876544
10 8434234407495744
11 8934133805179209
12 9999999800000001
13 999999998000000001
14 79012345680987654321
15 82644628100826446281
16 83407877440792003584
17 87138706300620940900

List of values

[9801, 998001, 99980001, 9048004641, 9999800001, 923594037444, 989444005264, 999998000001, 7901234409876544, 8434234407495744, 8934133805179209, 9999999800000001, 999999998000000001, 79012345680987654321, 82644628100826446281, 83407877440792003584, 87138706300620940900]

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

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