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.

A370611 Largest square such that any two consecutive digits of its base-n expansion differ by 1 after arranging the digits in decreasing order.

Table of values

n a(n)
2 1
3 1
4 225
5 4
6 38025
7 751689
8 10323369
9 355624164
10 9814072356
11 279740499025
12 8706730814089
13 86847500601
14 11027486960232964
15 435408094460869201
16 18362780530794065025
17 2492638430009890761
18 39207739576969100808801
19 1972312183619434816475625
20 104566626183621314286288961
21 13215338757299095309775089

List of values

[1, 1, 225, 4, 38025, 751689, 10323369, 355624164, 9814072356, 279740499025, 8706730814089, 86847500601, 11027486960232964, 435408094460869201, 18362780530794065025, 2492638430009890761, 39207739576969100808801, 1972312183619434816475625, 104566626183621314286288961, 13215338757299095309775089]

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

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