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.

A158028 Square numbers s such that all the digits needed to write the consecutive square numbers from 0 to s fill exactly a square (no holes, no overlaps).

Table of values

n a(n)
1 0
2 9
3 81
4 144
5 400
6 625
7 15625
8 17956
9 30276
10 34225
11 54289
12 60516
13 91204
14 1113025
15 1478656
16 1934881
17 2496400
18 3179089
19 4000000
20 4977361
21 6130576
22 7480225
23 9048064
24 1009205824
25 1063281664
26 1077152400
27 1134072976
28 1148667664

List of values

[0, 9, 81, 144, 400, 625, 15625, 17956, 30276, 34225, 54289, 60516, 91204, 1113025, 1478656, 1934881, 2496400, 3179089, 4000000, 4977361, 6130576, 7480225, 9048064, 1009205824, 1063281664, 1077152400, 1134072976, 1148667664]

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

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