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.

A116308 Numbers k such that k*(k+2) is the concatenation of two numbers m and m+3.

Table of values

n a(n)
1 452
2 547
3 690
4 855
5 4381
6 5618
7 72729
8 346532
9 653467
10 9090907
11 94117645
12 334665332
13 336032386
14 378253327
15 390977441
16 439928490
17 483516485
18 516483514
19 560071509
20 609022558
21 621746672
22 663967613
23 665334667

List of values

[452, 547, 690, 855, 4381, 5618, 72729, 346532, 653467, 9090907, 94117645, 334665332, 336032386, 378253327, 390977441, 439928490, 483516485, 516483514, 560071509, 609022558, 621746672, 663967613, 665334667]

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

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