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.

A382209 Numbers k such that 10+k and 10*k are perfect squares.

Table of values

n a(n)
1 90
2 136890
3 197402490
4 284654260890
5 410471246808090
6 591899253243012090
7 853518312705176632890
8 1230772815021611461622490
9 1774773545742851022483004890
10 2559222222188376152809031436090
11 3690396669622092669499600847844090
12 5321549438372835441042271613559748890

List of values

[90, 136890, 197402490, 284654260890, 410471246808090, 591899253243012090, 853518312705176632890, 1230772815021611461622490, 1774773545742851022483004890, 2559222222188376152809031436090, 3690396669622092669499600847844090, 5321549438372835441042271613559748890]

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

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