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.

A193380 A192392(n)/n = largest m such that m*n is a concatenation of the numbers n(n-1)/2+1,...,n(n+1)/2.

Table of values

n a(n)
1 1
2 16
3 218
4 24277
5 282624223
6 35336530286
7 4038946460332
8 454417916411629
9 50493713793377093
10 5554535251494847465
11 605967851146914507796
12 65648063122810597558064
13 7069922221437372952524460
14 714212835424956578936007364364293

List of values

[1, 16, 218, 24277, 282624223, 35336530286, 4038946460332, 454417916411629, 50493713793377093, 5554535251494847465, 605967851146914507796, 65648063122810597558064, 7069922221437372952524460, 714212835424956578936007364364293]

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

Content is available under The OEIS End-User License Agreement.